Riverside City Council
September 17, 2024

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 59 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-20 (Soil)
B33-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:12
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 60 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-20 (Soil)
B33-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:12
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.5% 75-125 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A Surrogate: Toluene-d8 98.9% 75-125 06/21/23 09:00 06/21/23 20:56 B3F0269 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 61 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-22 (Soil)
B35-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:40
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 62 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-22 (Soil)
B35-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:40
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 63 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-22 (Soil)
B35-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:40
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 105% 75-125 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030 Surrogate: Toluene-d8 100% 75-125 06/22/23 08:00 06/22/23 13:53 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 64 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-23 (Soil)
B35-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:47
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 65 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-23 (Soil)
B35-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:47
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 66 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-23 (Soil)
B35-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 10:47
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.5% 75-125 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 103% 75-125 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030 Surrogate: Toluene-d8 98.8% 75-125 06/22/23 08:00 06/22/23 14:32 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 67 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-25 (Soil)
B42-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:16
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 68 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-25 (Soil)
B42-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:16
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 69 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-25 (Soil)
B42-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:16
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.4% 75-125 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 104% 75-125 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030 Surrogate: Toluene-d8 100% 75-125 06/22/23 08:00 06/22/23 15:11 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 70 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-26 (Soil)
B42-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:20
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 71 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-26 (Soil)
B42-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:20
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 72 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-26 (Soil)
B42-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:20
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 105% 75-125 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030 Surrogate: Toluene-d8 98.9% 75-125 06/22/23 08:00 06/22/23 15:50 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 73 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-27 (Soil)
B95-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 12:00
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 74 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-27 (Soil)
B95-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 12:00
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 75 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-27 (Soil)
B95-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 12:00
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 103% 75-125 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030 Surrogate: Toluene-d8 99.2% 75-125 06/22/23 08:00 06/22/23 16:29 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 76 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-29 (Soil)
B43-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:44
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 77 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-29 (Soil)
B43-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:44
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 78 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-29 (Soil)
B43-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:44
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 104% 75-125 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030 Surrogate: Toluene-d8 97.6% 75-125 06/22/23 08:00 06/22/23 17:09 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 79 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-30 (Soil)
B43-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:56
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 80 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-30 (Soil)
B43-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:56
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 81 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-30 (Soil)
B43-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 11:56
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 103% 75-125 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030 Surrogate: Toluene-d8 97.9% 75-125 06/22/23 08:00 06/22/23 17:48 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 82 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-32 (Soil)
B47-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:10
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 83 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-32 (Soil)
B47-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:10
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 84 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-32 (Soil)
B47-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:10
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 103% 75-125 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030 Surrogate: Toluene-d8 98.5% 75-125 06/22/23 08:00 06/22/23 18:27 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 85 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-33 (Soil)
B47-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:14
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Benzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 86 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-33 (Soil)
B47-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:14
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Styrene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 87 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-33 (Soil)
B47-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:14
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Surrogate: Dibromofluoromethane 104% 75-125 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030 Surrogate: Toluene-d8 99.2% 75-125 06/22/23 08:00 06/22/23 19:06 B3F0282 DA 5030

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 88 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-34 (Soil)
B96-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 12:00
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 89 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-34 (Soil)
B96-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 12:00
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 90 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-34 (Soil)
B96-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 12:00
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Surrogate: Dibromofluoromethane 97.5% 75-125 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A Surrogate: Toluene-d8 101% 75-125 06/22/23 11:00 06/23/23 07:21 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 91 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-36 (Soil)
B44-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:35
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Benzene ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 92 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-36 (Soil)
B44-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:35
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 93 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-36 (Soil)
B44-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:35
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 102% 75-125 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Surrogate: Dibromofluoromethane 112% 75-125 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A Surrogate: Toluene-d8 102% 75-125 06/22/23 11:00 06/23/23 07:54 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 94 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-37 (Soil)
B44-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:39
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Benzene 2.23 J 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 95 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-37 (Soil)
B44-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:39
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Styrene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Toluene (Methyl benzene) 1.31 J 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 96 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-37 (Soil)
B44-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 13:39
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 99.6% 75-125 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Surrogate: Dibromofluoromethane 110% 75-125 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A Surrogate: Toluene-d8 99.7% 75-125 06/22/23 11:00 06/23/23 08:26 B3F0291 DK 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 97 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0240 - 5030B Prepared: 06/21/2023 11:30
Method Blank (B3F0240-BLK1) Analyzed: 06/22/2023 01:31
Acetone ND 5.00 10.0 ug/L
Benzene ND 0.500 1.00 ug/L
Bromobenzene (Phenyl bromide) ND 0.500 1.00 ug/L
Bromochloromethane ND 0.500 1.00 ug/L
Bromodichloromethane ND 0.500 1.00 ug/L
Bromoform (Tribromomethane) ND 2.50 5.00 ug/L
Bromomethane (Methyl bromide) ND 1.50 3.00 ug/L
2-Butanone (MEK) ND 5.00 10.0 ug/L
n-Butylbenzene ND 0.500 1.00 ug/L
sec-Butylbenzene ND 0.500 1.00 ug/L
tert-Butylbenzene ND 0.500 1.00 ug/L
Carbon Disulfide ND 0.500 1.00 ug/L
Carbon tetrachloride ND 0.500 1.00 ug/L
Chlorobenzene ND 0.500 1.00 ug/L
Chloroethane ND 1.50 3.00 ug/L
2-Chloroethyl vinyl ether ND 2.50 5.00 ug/L
Chloroform (Trichloromethane) ND 0.500 1.00 ug/L
Chloromethane (Methyl chloride) ND 1.50 3.00 ug/L
2-Chlorotoluene ND 0.500 1.00 ug/L
4-Chlorotoluene ND 0.500 1.00 ug/L
1,2-Dibromo-3-chloropropane
(DBCP)
ND 2.50 5.00 ug/L
Dibromochloromethane ND 0.500 1.00 ug/L
1,2-Dibromoethane (EDB) ND 0.500 1.00 ug/L
Dibromomethane ND 0.500 1.00 ug/L
1,2-Dichlorobenzene ND 0.500 1.00 ug/L
1,3-Dichlorobenzene ND 0.500 1.00 ug/L
1,4-Dichlorobenzene ND 0.500 1.00 ug/L
Dichlorodifluoromethane ND 1.50 3.00 ug/L
1,1-Dichloroethane ND 0.500 1.00 ug/L
1,2-Dichloroethane (EDC) ND 0.500 1.00 ug/L
1,1-Dichloroethene ND 0.500 1.00 ug/L
cis-1,2-Dichloroethene ND 0.500 1.00 ug/L
trans-1,2-Dichloroethene ND 0.500 1.00 ug/L
1,2-Dichloropropane ND 0.500 1.00 ug/L
1,3-Dichloropropane ND 0.500 1.00 ug/L
2,2-Dichloropropane ND 0.500 1.00 ug/L
1,1-Dichloropropene ND 0.500 1.00 ug/L
cis-1,3-Dichloropropene ND 0.500 1.00 ug/L
trans-1,3-Dichloropropene ND 0.500 1.00 ug/L
Ethylbenzene ND 0.500 1.00 ug/L
Hexachlorobutadiene ND 1.50 3.00 ug/L
2-Hexanone ND 2.50 5.00 ug/L
[TOC_1]Quality Control
Results[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 98 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0240 - 5030B (Continued) Prepared: 06/21/2023 11:30 Method Blank (B3F0240-BLK1) Analyzed: 06/22/2023 01:31
Iodomethane ND 0.500 1.00 ug/L
Isopropylbenzene ND 0.500 1.00 ug/L
p-Isopropyltoluene ND 0.500 1.00 ug/L
4-Methyl-2-pentanone (MIBK) ND 2.50 5.00 ug/L
Methylene chloride (DCM) ND 5.00 10.0 ug/L
Naphthalene ND 0.500 1.00 ug/L
n-Propylbenzene ND 0.500 1.00 ug/L
Styrene ND 0.500 1.00 ug/L
1,1,1,2-Tetrachloroethane ND 0.500 1.00 ug/L
1,1,2,2-Tetrachloroethane ND 0.500 1.00 ug/L
Tetrachloroethene ND 0.500 1.00 ug/L
Toluene (Methyl benzene) ND 0.500 1.00 ug/L
1,2,3-Trichlorobenzene ND 0.500 1.00 ug/L
1,2,4-Trichlorobenzene ND 0.500 1.00 ug/L
1,1,1-Trichloroethane ND 0.500 1.00 ug/L
1,1,2-Trichloroethane ND 0.500 1.00 ug/L
Trichloroethene ND 0.500 1.00 ug/L
Trichlorofluoromethane ND 0.500 1.00 ug/L
Trichlorotrifluoroethane
(Freon-113)
ND 0.500 1.00 ug/L
1,2,3-Trichloropropane ND 0.500 1.00 ug/L
1,2,4-Trimethylbenzene ND 0.500 1.00 ug/L
1,3,5-Trimethylbenzene ND 0.500 1.00 ug/L
Vinyl Acetate ND 0.500 5.00 ug/L
Vinyl chloride (Chloroethene) ND 0.500 3.00 ug/L
o-Xylene ND 0.500 1.00 ug/L
m,p-Xylenes ND 1.00 2.00 ug/L
tert-Butyl alcohol (TBA) ND 10.0 50.0 ug/L
Diisopropyl ether (DIPE) ND 0.500 1.00 ug/L
Ethyl alcohol (Ethanol) ND 250 500 ug/L
Ethyl-tert-butyl ether (ETBE) ND 0.500 1.00 ug/L
Methyl-tert-butyl ether (MTBE) ND 0.500 1.00 ug/L
tert-Amyl methyl ether (TAME) ND 0.500 1.00 ug/L
Acrylonitrile (2-Propenenitrile) ND 0.500 1.00 ug/L
Hexachloroethane ND 0.500 1.00 ug/L
trans-1,4-Dichloro-2-butene ND 0.500 1.00 ug/L
Surrogate: Bromofluorobenzene 49.3 ug/L 50.0 98.6 75-125 Surrogate: Dibromofluoromethane 51.9 ug/L 50.0 104 75-125 Surrogate: Toluene-d8 49.9 ug/L 50.0 99.8 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 99 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0240 - 5030B (Continued) Prepared: 06/21/2023 11:30 LCS (B3F0240-BS1) Analyzed: 06/21/2023 23:33
Benzene 49.0 ug/L 50.0 97.9 75-125
Carbon tetrachloride 50.6 ug/L 50.0 101 75-125
Chlorobenzene 47.5 ug/L 50.0 95.0 75-125
Chloroform (Trichloromethane) 52.2 ug/L 50.0 104 75-125 1,2-Dichlorobenzene 45.2 ug/L 50.0 90.3 75-125
1,1-Dichloroethane 51.8 ug/L 50.0 104 75-125
1,1-Dichloroethene 50.0 ug/L 50.0 100 75-125
cis-1,2-Dichloroethene 50.8 ug/L 50.0 102 75-125
Ethylbenzene 47.6 ug/L 50.0 95.3 75-125
Isopropylbenzene 44.6 ug/L 50.0 89.2 75-125
n-Propylbenzene 43.8 ug/L 50.0 87.7 75-125
Toluene (Methyl benzene) 47.2 ug/L 50.0 94.4 75-125
1,1,1-Trichloroethane 50.7 ug/L 50.0 101 75-125
1,1,2-Trichloroethane 50.5 ug/L 50.0 101 75-125
Trichloroethene 48.0 ug/L 50.0 96.1 75-125
1,2,4-Trimethylbenzene 44.5 ug/L 50.0 89.0 75-125
1,3,5-Trimethylbenzene 44.9 ug/L 50.0 89.7 75-125
o-Xylene 48.2 ug/L 50.0 96.5 75-125
m,p-Xylenes 95.5 ug/L 100 95.5 75-125
Methyl-tert-butyl ether (MTBE) 53.7 ug/L 50.0 107 75-125 Surrogate: Bromofluorobenzene 50.1 ug/L 50.0 100 75-125 Surrogate: Dibromofluoromethane 51.8 ug/L 50.0 104 75-125 Surrogate: Toluene-d8 48.6 ug/L 50.0 97.3 75-125
LCSD (B3F0240-BSD1) Analyzed: 06/22/2023 00:12
Benzene 49.0 ug/L 50.0 98.0 75-125 0.0408 20
Carbon tetrachloride 50.9 ug/L 50.0 102 75-125 0.631 20 Chlorobenzene 47.7 ug/L 50.0 95.4 75-125 0.399 20
Chloroform (Trichloromethane) 52.4 ug/L 50.0 105 75-125 0.325 20 1,2-Dichlorobenzene 45.2 ug/L 50.0 90.4 75-125 0.0664 20 1,1-Dichloroethane 52.4 ug/L 50.0 105 75-125 1.06 20
1,1-Dichloroethene 49.6 ug/L 50.0 99.3 75-125 0.763 20
cis-1,2-Dichloroethene 50.1 ug/L 50.0 100 75-125 1.35 20 Ethylbenzene 47.2 ug/L 50.0 94.5 75-125 0.864 20
Isopropylbenzene 44.6 ug/L 50.0 89.2 75-125 0.0224 20
n-Propylbenzene 44.0 ug/L 50.0 88.0 75-125 0.342 20
Toluene (Methyl benzene) 47.0 ug/L 50.0 94.1 75-125 0.318 20 1,1,1-Trichloroethane 49.8 ug/L 50.0 99.6 75-125 1.89 20 1,1,2-Trichloroethane 51.2 ug/L 50.0 102 75-125 1.42 20 Trichloroethene 48.0 ug/L 50.0 96.0 75-125 0.0625 20
1,2,4-Trimethylbenzene 44.2 ug/L 50.0 88.3 75-125 0.745 20 1,3,5-Trimethylbenzene 44.7 ug/L 50.0 89.4 75-125 0.402 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 100 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0240 - 5030B (Continued) Prepared: 06/21/2023 11:30 LCSD (B3F0240-BSD1) Analyzed: 06/22/2023 00:12
o-Xylene 47.9 ug/L 50.0 95.9 75-125 0.624 20
m,p-Xylenes 94.9 ug/L 100 94.9 75-125 0.567 20
Methyl-tert-butyl ether (MTBE) 54.0 ug/L 50.0 108 75-125 0.613 20 Surrogate: Bromofluorobenzene 50.4 ug/L 50.0 101 75-125 Surrogate: Dibromofluoromethane 52.0 ug/L 50.0 104 75-125 Surrogate: Toluene-d8 48.6 ug/L 50.0 97.2 75-125
Duplicate (B3F0240-DUP1) Source: BEF0194-01 Analyzed: 06/22/2023 02:49 Benzene ND 0.500 1.00 ug/L ND NA 20
Carbon tetrachloride ND 0.500 1.00 ug/L ND NA 20
Chlorobenzene ND 0.500 1.00 ug/L ND NA 20
Chloroform (Trichloromethane) ND 0.500 1.00 ug/L ND NA 20 1,2-Dichlorobenzene ND 0.500 1.00 ug/L ND NA 20
1,1-Dichloroethane ND 0.500 1.00 ug/L ND NA 20
1,1-Dichloroethene ND 0.500 1.00 ug/L ND NA 20
cis-1,2-Dichloroethene ND 0.500 1.00 ug/L ND NA 20
Ethylbenzene ND 0.500 1.00 ug/L ND NA 20
Isopropylbenzene ND 0.500 1.00 ug/L ND NA 20
n-Propylbenzene ND 0.500 1.00 ug/L ND NA 20
Toluene (Methyl benzene) ND 0.500 1.00 ug/L ND NA 20
1,1,1-Trichloroethane ND 0.500 1.00 ug/L ND NA 20
1,1,2-Trichloroethane ND 0.500 1.00 ug/L ND NA 20
Trichloroethene ND 0.500 1.00 ug/L ND NA 20
1,2,4-Trimethylbenzene ND 0.500 1.00 ug/L ND NA 20
1,3,5-Trimethylbenzene ND 0.500 1.00 ug/L ND NA 20
o-Xylene ND 0.500 1.00 ug/L ND NA 20
m,p-Xylenes ND 1.00 2.00 ug/L ND NA 20
Ethyl alcohol (Ethanol) ND 250 500 ug/L ND NA 20
Methyl-tert-butyl ether (MTBE) ND 0.500 1.00 ug/L ND NA 20 Surrogate: Bromofluorobenzene 50.0 ug/L 50.0 100 75-125 Surrogate: Dibromofluoromethane 51.4 ug/L 50.0 103 75-125 Surrogate: Toluene-d8 49.6 ug/L 50.0 99.3 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 101 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0240 - 5030B (Continued) Prepared: 06/21/2023 11:30 Matrix Spike (B3F0240-MS1) Source: BEF0194-01 Analyzed: 06/22/2023 05:27 Benzene 49.1 ug/L 50.0 0.00 98.2 75-125
Carbon tetrachloride 51.2 ug/L 50.0 0.00 102 75-125
Chlorobenzene 46.9 ug/L 50.0 0.00 93.9 75-125
Chloroform (Trichloromethane) 52.5 ug/L 50.0 0.00 105 75-125 1,2-Dichlorobenzene 45.4 ug/L 50.0 0.00 90.9 75-125
1,1-Dichloroethane 51.4 ug/L 50.0 0.00 103 75-125
1,1-Dichloroethene 49.9 ug/L 50.0 0.00 99.7 75-125
cis-1,2-Dichloroethene 49.4 ug/L 50.0 0.00 98.7 75-125
Ethylbenzene 47.3 ug/L 50.0 0.00 94.6 75-125
Isopropylbenzene 43.5 ug/L 50.0 0.00 87.0 75-125
n-Propylbenzene 43.2 ug/L 50.0 0.00 86.3 75-125
Toluene (Methyl benzene) 46.4 ug/L 50.0 0.00 92.8 75-125 1,1,1-Trichloroethane 50.9 ug/L 50.0 0.00 102 75-125
1,1,2-Trichloroethane 51.7 ug/L 50.0 0.00 103 75-125
Trichloroethene 48.1 ug/L 50.0 0.00 96.2 75-125
1,2,4-Trimethylbenzene 44.2 ug/L 50.0 0.00 88.4 75-125
1,3,5-Trimethylbenzene 44.2 ug/L 50.0 0.00 88.4 75-125
o-Xylene 48.0 ug/L 50.0 0.00 95.9 75-125
m,p-Xylenes 94.3 ug/L 100 0.00 94.3 75-125
Methyl-tert-butyl ether (MTBE) 54.9 ug/L 50.0 0.00 110 75-125 Surrogate: Bromofluorobenzene 50.1 ug/L 50.0 100 75-125 Surrogate: Dibromofluoromethane 52.4 ug/L 50.0 105 75-125 Surrogate: Toluene-d8 48.1 ug/L 50.0 96.2 75-125
Matrix Spike Dup (B3F0240-MSD1) Source: BEF0194-01 Analyzed: 06/22/2023 06:06 Benzene 49.1 ug/L 50.0 0.00 98.3 75-125 0.0407 20
Carbon tetrachloride 50.6 ug/L 50.0 0.00 101 75-125 1.18 20 Chlorobenzene 47.5 ug/L 50.0 0.00 95.0 75-125 1.19 20
Chloroform (Trichloromethane) 52.3 ug/L 50.0 0.00 105 75-125 0.267 20 1,2-Dichlorobenzene 45.7 ug/L 50.0 0.00 91.4 75-125 0.614 20 1,1-Dichloroethane 51.9 ug/L 50.0 0.00 104 75-125 1.03 20 1,1-Dichloroethene 49.8 ug/L 50.0 0.00 99.6 75-125 0.161 20 cis-1,2-Dichloroethene 50.0 ug/L 50.0 0.00 99.9 75-125 1.21 20 Ethylbenzene 47.5 ug/L 50.0 0.00 95.0 75-125 0.359 20
Isopropylbenzene 44.5 ug/L 50.0 0.00 88.9 75-125 2.18 20 n-Propylbenzene 44.3 ug/L 50.0 0.00 88.5 75-125 2.52 20 Toluene (Methyl benzene) 46.9 ug/L 50.0 0.00 93.7 75-125 0.965 20 1,1,1-Trichloroethane 50.2 ug/L 50.0 0.00 100 75-125 1.29 20 1,1,2-Trichloroethane 51.6 ug/L 50.0 0.00 103 75-125 0.194 20 Trichloroethene 48.1 ug/L 50.0 0.00 96.1 75-125 0.125 20 1,2,4-Trimethylbenzene 44.5 ug/L 50.0 0.00 88.9 75-125 0.586 20 1,3,5-Trimethylbenzene 45.0 ug/L 50.0 0.00 89.9 75-125 1.68 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 102 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0240 - 5030B (Continued) Prepared: 06/21/2023 11:30 Matrix Spike Dup (B3F0240-MSD1) Source: BEF0194-01 Analyzed: 06/22/2023 06:06 o-Xylene 48.2 ug/L 50.0 0.00 96.4 75-125 0.520 20
m,p-Xylenes 95.2 ug/L 100 0.00 95.2 75-125 0.918 20
Methyl-tert-butyl ether (MTBE) 54.6 ug/L 50.0 0.00 109 75-125 0.420 20 Surrogate: Bromofluorobenzene 49.8 ug/L 50.0 99.7 75-125 Surrogate: Dibromofluoromethane 52.0 ug/L 50.0 104 75-125 Surrogate: Toluene-d8 48.3 ug/L 50.0 96.6 75-125
Batch: B3F0269 - 5035A Prepared: 06/21/2023 09:00
Method Blank (B3F0269-BLK1) Analyzed: 06/21/2023 13:05
Acetone ND 25.0 50.0 ug/kg
Benzene ND 1.00 10.0 ug/kg
Bromobenzene (Phenyl bromide) ND 5.00 10.0 ug/kg
Bromochloromethane ND 5.00 10.0 ug/kg
Bromodichloromethane ND 5.00 10.0 ug/kg
Bromoform (Tribromomethane) ND 25.0 50.0 ug/kg
Bromomethane (Methyl bromide) ND 15.0 30.0 ug/kg
2-Butanone (MEK) ND 25.0 50.0 ug/kg
n-Butylbenzene ND 5.00 10.0 ug/kg
sec-Butylbenzene ND 5.00 10.0 ug/kg
tert-Butylbenzene ND 5.00 10.0 ug/kg
Carbon Disulfide ND 25.0 50.0 ug/kg
Carbon tetrachloride ND 5.00 10.0 ug/kg
Chlorobenzene ND 5.00 10.0 ug/kg
Chloroethane ND 15.0 30.0 ug/kg
2-Chloroethyl vinyl ether ND 50.0 50.0 ug/kg
Chloroform (Trichloromethane) ND 5.00 10.0 ug/kg
Chloromethane (Methyl chloride) ND 15.0 30.0 ug/kg
2-Chlorotoluene ND 5.00 10.0 ug/kg
4-Chlorotoluene ND 5.00 10.0 ug/kg
1,2-Dibromo-3-chloropropane
(DBCP)
ND 5.00 10.0 ug/kg
Dibromochloromethane ND 5.00 10.0 ug/kg
1,2-Dibromoethane (EDB) ND 5.00 10.0 ug/kg
Dibromomethane ND 5.00 10.0 ug/kg
1,2-Dichlorobenzene ND 5.00 10.0 ug/kg
1,3-Dichlorobenzene ND 5.00 10.0 ug/kg
1,4-Dichlorobenzene ND 5.00 10.0 ug/kg
Dichlorodifluoromethane ND 15.0 30.0 ug/kg
1,1-Dichloroethane ND 5.00 10.0 ug/kg
1,2-Dichloroethane (EDC) ND 5.00 10.0 ug/kg
1,1-Dichloroethene ND 5.00 10.0 ug/kg
cis-1,2-Dichloroethene ND 5.00 10.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 103 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0269 - 5035A (Continued) Prepared: 06/21/2023 09:00 Method Blank (B3F0269-BLK1) Analyzed: 06/21/2023 13:05
trans-1,2-Dichloroethene ND 5.00 10.0 ug/kg
1,2-Dichloropropane ND 5.00 10.0 ug/kg
1,3-Dichloropropane ND 5.00 10.0 ug/kg
2,2-Dichloropropane ND 5.00 10.0 ug/kg
1,1-Dichloropropene ND 5.00 10.0 ug/kg
cis-1,3-Dichloropropene ND 5.00 10.0 ug/kg
trans-1,3-Dichloropropene ND 5.00 10.0 ug/kg
Ethylbenzene ND 1.00 10.0 ug/kg
Hexachlorobutadiene ND 15.0 30.0 ug/kg
2-Hexanone ND 25.0 50.0 ug/kg
Iodomethane ND 5.00 10.0 ug/kg
Isopropylbenzene ND 5.00 10.0 ug/kg
p-Isopropyltoluene ND 5.00 10.0 ug/kg
4-Methyl-2-pentanone (MIBK) ND 25.0 50.0 ug/kg
Methylene chloride (DCM) ND 25.0 50.0 ug/kg
Naphthalene ND 5.00 10.0 ug/kg
n-Propylbenzene ND 5.00 10.0 ug/kg
Styrene ND 5.00 10.0 ug/kg
1,1,1,2-Tetrachloroethane ND 5.00 10.0 ug/kg
1,1,2,2-Tetrachloroethane ND 5.00 10.0 ug/kg
Tetrachloroethene ND 2.00 10.0 ug/kg
Toluene (Methyl benzene) ND 1.00 10.0 ug/kg
1,2,3-Trichlorobenzene ND 5.00 10.0 ug/kg
1,2,4-Trichlorobenzene ND 5.00 10.0 ug/kg
1,1,1-Trichloroethane ND 5.00 10.0 ug/kg
1,1,2-Trichloroethane ND 5.00 10.0 ug/kg
Trichloroethene ND 1.50 10.0 ug/kg
Trichlorofluoromethane ND 5.00 10.0 ug/kg
Trichlorotrifluoroethane
(Freon-113)
ND 5.00 10.0 ug/kg
1,2,3-Trichloropropane ND 1.00 5.00 ug/kg
1,2,4-Trimethylbenzene ND 5.00 10.0 ug/kg
1,3,5-Trimethylbenzene ND 5.00 10.0 ug/kg
Vinyl Acetate ND 25.0 50.0 ug/kg
Vinyl chloride (Chloroethene) ND 5.00 10.0 ug/kg
o-Xylene ND 1.00 10.0 ug/kg
m,p-Xylenes ND 1.00 20.0 ug/kg
tert-Butyl alcohol (TBA) ND 10.0 50.0 ug/kg
Diisopropyl ether (DIPE) ND 2.00 10.0 ug/kg
Ethyl alcohol (Ethanol) ND 100 250 ug/kg
Ethyl-tert-butyl ether (ETBE) ND 2.00 10.0 ug/kg
Methyl-tert-butyl ether (MTBE) ND 2.00 10.0 ug/kg
tert-Amyl methyl ether (TAME) ND 2.00 10.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 104 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0269 - 5035A (Continued) Prepared: 06/21/2023 09:00 Method Blank (B3F0269-BLK1) Analyzed: 06/21/2023 13:05
Surrogate: Bromofluorobenzene 50.3 ug/kg 50.0 101 75-125 Surrogate: Dibromofluoromethane 51.5 ug/kg 50.0 103 75-125 Surrogate: Toluene-d8 49.8 ug/kg 50.0 99.5 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 105 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0269 - 5035A (Continued) Prepared: 06/21/2023 09:00 LCS (B3F0269-BS1) Analyzed: 06/21/2023 11:07
Benzene 49.6 ug/kg 50.0 99.1 75-125
Carbon tetrachloride 51.0 ug/kg 50.0 102 75-125
Chlorobenzene 49.2 ug/kg 50.0 98.4 75-125
Chloroform (Trichloromethane) 52.4 ug/kg 50.0 105 75-125 1,2-Dichlorobenzene 47.8 ug/kg 50.0 95.7 75-125
1,1-Dichloroethane 51.3 ug/kg 50.0 103 75-125
1,1-Dichloroethene 49.2 ug/kg 50.0 98.5 75-125
cis-1,2-Dichloroethene 50.4 ug/kg 50.0 101 75-125
Ethylbenzene 49.0 ug/kg 50.0 97.9 75-125
Isopropylbenzene 46.4 ug/kg 50.0 92.7 75-125
n-Propylbenzene 46.2 ug/kg 50.0 92.5 75-125
Toluene (Methyl benzene) 48.1 ug/kg 50.0 96.2 75-125
1,1,1-Trichloroethane 50.6 ug/kg 50.0 101 75-125
1,1,2-Trichloroethane 50.8 ug/kg 50.0 102 75-125
Trichloroethene 49.6 ug/kg 50.0 99.1 75-125
1,2,4-Trimethylbenzene 46.7 ug/kg 50.0 93.4 75-125
1,3,5-Trimethylbenzene 46.7 ug/kg 50.0 93.5 75-125
o-Xylene 49.8 ug/kg 50.0 99.5 75-125
m,p-Xylenes 98.9 ug/kg 100 98.9 75-125
Methyl-tert-butyl ether (MTBE) 52.6 ug/kg 50.0 105 75-125 Surrogate: Bromofluorobenzene 49.4 ug/kg 50.0 98.8 75-125 Surrogate: Dibromofluoromethane 51.0 ug/kg 50.0 102 75-125 Surrogate: Toluene-d8 48.2 ug/kg 50.0 96.4 75-125
LCSD (B3F0269-BSD1) Analyzed: 06/21/2023 11:47
Benzene 49.4 ug/kg 50.0 98.9 75-125 0.242 20
Carbon tetrachloride 50.5 ug/kg 50.0 101 75-125 0.907 20 Chlorobenzene 49.5 ug/kg 50.0 99.0 75-125 0.608 20
Chloroform (Trichloromethane) 52.9 ug/kg 50.0 106 75-125 0.969 20 1,2-Dichlorobenzene 48.0 ug/kg 50.0 95.9 75-125 0.209 20 1,1-Dichloroethane 51.6 ug/kg 50.0 103 75-125 0.641 20
1,1-Dichloroethene 50.1 ug/kg 50.0 100 75-125 1.77 20
cis-1,2-Dichloroethene 50.9 ug/kg 50.0 102 75-125 1.15 20 Ethylbenzene 49.8 ug/kg 50.0 99.6 75-125 1.68 20
Isopropylbenzene 46.0 ug/kg 50.0 92.1 75-125 0.692 20
n-Propylbenzene 46.5 ug/kg 50.0 93.1 75-125 0.625 20
Toluene (Methyl benzene) 48.6 ug/kg 50.0 97.1 75-125 0.973 20 1,1,1-Trichloroethane 49.7 ug/kg 50.0 99.3 75-125 1.80 20 1,1,2-Trichloroethane 50.7 ug/kg 50.0 101 75-125 0.158 20 Trichloroethene 49.1 ug/kg 50.0 98.2 75-125 0.993 20
1,2,4-Trimethylbenzene 47.2 ug/kg 50.0 94.3 75-125 0.959 20 1,3,5-Trimethylbenzene 47.1 ug/kg 50.0 94.2 75-125 0.767 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 106 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0269 - 5035A (Continued) Prepared: 06/21/2023 09:00 LCSD (B3F0269-BSD1) Analyzed: 06/21/2023 11:47
o-Xylene 50.4 ug/kg 50.0 101 75-125 1.38 20
m,p-Xylenes 101 ug/kg 100 101 75-125 1.83 20
Methyl-tert-butyl ether (MTBE) 53.0 ug/kg 50.0 106 75-125 0.682 20 Surrogate: Bromofluorobenzene 49.8 ug/kg 50.0 99.6 75-125 Surrogate: Dibromofluoromethane 51.8 ug/kg 50.0 104 75-125 Surrogate: Toluene-d8 48.8 ug/kg 50.0 97.6 75-125
Batch: B3F0282 - 5030 Prepared: 06/22/2023 08:00
Method Blank (B3F0282-BLK1) Analyzed: 06/22/2023 11:16
Acetone ND 25.0 50.0 ug/kg
Benzene ND 1.00 10.0 ug/kg
Bromobenzene (Phenyl bromide) ND 5.00 10.0 ug/kg
Bromochloromethane ND 5.00 10.0 ug/kg
Bromodichloromethane ND 5.00 10.0 ug/kg
Bromoform (Tribromomethane) ND 25.0 50.0 ug/kg
Bromomethane (Methyl bromide) ND 15.0 30.0 ug/kg
2-Butanone (MEK) ND 25.0 50.0 ug/kg
n-Butylbenzene ND 5.00 10.0 ug/kg
sec-Butylbenzene ND 5.00 10.0 ug/kg
tert-Butylbenzene ND 5.00 10.0 ug/kg
Carbon Disulfide ND 25.0 50.0 ug/kg
Carbon tetrachloride ND 5.00 10.0 ug/kg
Chlorobenzene ND 5.00 10.0 ug/kg
Chloroethane ND 15.0 30.0 ug/kg
2-Chloroethyl vinyl ether ND 50.0 50.0 ug/kg
Chloroform (Trichloromethane) ND 5.00 10.0 ug/kg
Chloromethane (Methyl chloride) ND 15.0 30.0 ug/kg
2-Chlorotoluene ND 5.00 10.0 ug/kg
4-Chlorotoluene ND 5.00 10.0 ug/kg
1,2-Dibromo-3-chloropropane
(DBCP)
ND 5.00 10.0 ug/kg
Dibromochloromethane ND 5.00 10.0 ug/kg
1,2-Dibromoethane (EDB) ND 5.00 10.0 ug/kg
Dibromomethane ND 5.00 10.0 ug/kg
1,2-Dichlorobenzene ND 5.00 10.0 ug/kg
1,3-Dichlorobenzene ND 5.00 10.0 ug/kg
1,4-Dichlorobenzene ND 5.00 10.0 ug/kg
Dichlorodifluoromethane ND 15.0 30.0 ug/kg
1,1-Dichloroethane ND 5.00 10.0 ug/kg
1,2-Dichloroethane (EDC) ND 5.00 10.0 ug/kg
1,1-Dichloroethene ND 5.00 10.0 ug/kg
cis-1,2-Dichloroethene ND 5.00 10.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 107 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0282 - 5030 (Continued) Prepared: 06/22/2023 08:00 Method Blank (B3F0282-BLK1) Analyzed: 06/22/2023 11:16
trans-1,2-Dichloroethene ND 5.00 10.0 ug/kg
1,2-Dichloropropane ND 5.00 10.0 ug/kg
1,3-Dichloropropane ND 5.00 10.0 ug/kg
2,2-Dichloropropane ND 5.00 10.0 ug/kg
1,1-Dichloropropene ND 5.00 10.0 ug/kg
cis-1,3-Dichloropropene ND 5.00 10.0 ug/kg
trans-1,3-Dichloropropene ND 5.00 10.0 ug/kg
Ethylbenzene ND 1.00 10.0 ug/kg
Hexachlorobutadiene ND 15.0 30.0 ug/kg
2-Hexanone ND 25.0 50.0 ug/kg
Iodomethane ND 5.00 10.0 ug/kg
Isopropylbenzene ND 5.00 10.0 ug/kg
p-Isopropyltoluene ND 5.00 10.0 ug/kg
4-Methyl-2-pentanone (MIBK) ND 25.0 50.0 ug/kg
Methylene chloride (DCM) ND 25.0 50.0 ug/kg
Naphthalene ND 5.00 10.0 ug/kg
n-Propylbenzene ND 5.00 10.0 ug/kg
Styrene ND 5.00 10.0 ug/kg
1,1,1,2-Tetrachloroethane ND 5.00 10.0 ug/kg
1,1,2,2-Tetrachloroethane ND 5.00 10.0 ug/kg
Tetrachloroethene ND 2.00 10.0 ug/kg
Toluene (Methyl benzene) ND 1.00 10.0 ug/kg
1,2,3-Trichlorobenzene ND 5.00 10.0 ug/kg
1,2,4-Trichlorobenzene ND 5.00 10.0 ug/kg
1,1,1-Trichloroethane ND 5.00 10.0 ug/kg
1,1,2-Trichloroethane ND 5.00 10.0 ug/kg
Trichloroethene ND 1.50 10.0 ug/kg
Trichlorofluoromethane ND 5.00 10.0 ug/kg
Trichlorotrifluoroethane
(Freon-113)
ND 5.00 10.0 ug/kg
1,2,3-Trichloropropane ND 1.00 5.00 ug/kg
1,2,4-Trimethylbenzene ND 5.00 10.0 ug/kg
1,3,5-Trimethylbenzene ND 5.00 10.0 ug/kg
Vinyl Acetate ND 25.0 50.0 ug/kg
Vinyl chloride (Chloroethene) ND 5.00 10.0 ug/kg
o-Xylene ND 1.00 10.0 ug/kg
m,p-Xylenes ND 1.00 20.0 ug/kg
tert-Butyl alcohol (TBA) ND 10.0 50.0 ug/kg
Diisopropyl ether (DIPE) ND 2.00 10.0 ug/kg
Ethyl alcohol (Ethanol) ND 100 250 ug/kg
Ethyl-tert-butyl ether (ETBE) ND 2.00 10.0 ug/kg
Methyl-tert-butyl ether (MTBE) ND 2.00 10.0 ug/kg
tert-Amyl methyl ether (TAME) ND 2.00 10.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 108 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0282 - 5030 (Continued) Prepared: 06/22/2023 08:00 Method Blank (B3F0282-BLK1) Analyzed: 06/22/2023 11:16
Surrogate: Bromofluorobenzene 49.9 ug/kg 50.0 99.9 75-125 Surrogate: Dibromofluoromethane 51.1 ug/kg 50.0 102 75-125 Surrogate: Toluene-d8 50.4 ug/kg 50.0 101 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 109 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0282 - 5030 (Continued) Prepared: 06/22/2023 08:00 LCS (B3F0282-BS1) Analyzed: 06/22/2023 09:18
Benzene 46.4 ug/kg 50.0 92.8 75-125
Carbon tetrachloride 49.7 ug/kg 50.0 99.4 75-125
Chlorobenzene 46.4 ug/kg 50.0 92.8 75-125
Chloroform (Trichloromethane) 48.8 ug/kg 50.0 97.7 75-125 1,2-Dichlorobenzene 44.6 ug/kg 50.0 89.3 75-125
1,1-Dichloroethane 49.1 ug/kg 50.0 98.2 75-125
1,1-Dichloroethene 47.9 ug/kg 50.0 95.8 75-125
cis-1,2-Dichloroethene 47.0 ug/kg 50.0 94.0 75-125
Ethylbenzene 46.9 ug/kg 50.0 93.9 75-125
Isopropylbenzene 45.0 ug/kg 50.0 89.9 75-125
n-Propylbenzene 44.9 ug/kg 50.0 89.9 75-125
Toluene (Methyl benzene) 45.8 ug/kg 50.0 91.5 75-125
1,1,1-Trichloroethane 48.8 ug/kg 50.0 97.6 75-125
1,1,2-Trichloroethane 46.7 ug/kg 50.0 93.4 75-125
Trichloroethene 47.0 ug/kg 50.0 94.1 75-125
1,2,4-Trimethylbenzene 45.1 ug/kg 50.0 90.2 75-125
1,3,5-Trimethylbenzene 45.3 ug/kg 50.0 90.6 75-125
o-Xylene 47.5 ug/kg 50.0 95.1 75-125
m,p-Xylenes 95.3 ug/kg 100 95.3 75-125
Methyl-tert-butyl ether (MTBE) 47.5 ug/kg 50.0 95.0 75-125 Surrogate: Bromofluorobenzene 49.9 ug/kg 50.0 99.8 75-125 Surrogate: Dibromofluoromethane 51.3 ug/kg 50.0 103 75-125 Surrogate: Toluene-d8 48.8 ug/kg 50.0 97.7 75-125
LCSD (B3F0282-BSD1) Analyzed: 06/22/2023 09:57
Benzene 49.1 ug/kg 50.0 98.2 75-125 5.72 20
Carbon tetrachloride 51.5 ug/kg 50.0 103 75-125 3.54 20 Chlorobenzene 48.6 ug/kg 50.0 97.3 75-125 4.73 20
Chloroform (Trichloromethane) 52.2 ug/kg 50.0 104 75-125 6.53 20 1,2-Dichlorobenzene 47.8 ug/kg 50.0 95.5 75-125 6.71 20 1,1-Dichloroethane 51.2 ug/kg 50.0 102 75-125 4.15 20
1,1-Dichloroethene 49.0 ug/kg 50.0 98.0 75-125 2.27 20
cis-1,2-Dichloroethene 49.5 ug/kg 50.0 99.0 75-125 5.18 20 Ethylbenzene 49.1 ug/kg 50.0 98.1 75-125 4.46 20
Isopropylbenzene 46.5 ug/kg 50.0 93.1 75-125 3.41 20
n-Propylbenzene 46.5 ug/kg 50.0 93.0 75-125 3.41 20
Toluene (Methyl benzene) 47.6 ug/kg 50.0 95.3 75-125 4.03 20 1,1,1-Trichloroethane 50.3 ug/kg 50.0 101 75-125 3.11 20 1,1,2-Trichloroethane 49.9 ug/kg 50.0 99.8 75-125 6.61 20 Trichloroethene 49.2 ug/kg 50.0 98.3 75-125 4.43 20
1,2,4-Trimethylbenzene 47.1 ug/kg 50.0 94.2 75-125 4.40 20 1,3,5-Trimethylbenzene 47.2 ug/kg 50.0 94.3 75-125 4.02 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 110 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0282 - 5030 (Continued) Prepared: 06/22/2023 08:00 LCSD (B3F0282-BSD1) Analyzed: 06/22/2023 09:57
o-Xylene 48.9 ug/kg 50.0 97.9 75-125 2.90 20
m,p-Xylenes 98.8 ug/kg 100 98.8 75-125 3.58 20
Methyl-tert-butyl ether (MTBE) 51.2 ug/kg 50.0 102 75-125 7.44 20 Surrogate: Bromofluorobenzene 50.0 ug/kg 50.0 99.9 75-125 Surrogate: Dibromofluoromethane 51.2 ug/kg 50.0 102 75-125 Surrogate: Toluene-d8 48.8 ug/kg 50.0 97.7 75-125
Matrix Spike (B3F0282-MS1) Source: BEF0201-01 Analyzed: 06/22/2023 19:45 Benzene 49.2 ug/kg 50.0 0.680 97.0 75-125
Carbon tetrachloride 54.4 ug/kg 50.0 0.00 109 75-125
Chlorobenzene 47.8 ug/kg 50.0 0.00 95.7 75-125
Chloroform (Trichloromethane) 53.8 ug/kg 50.0 0.00 108 75-125 1,2-Dichlorobenzene 44.2 ug/kg 50.0 0.00 88.3 75-125
1,1-Dichloroethane 52.6 ug/kg 50.0 0.00 105 75-125
1,1-Dichloroethene 51.7 ug/kg 50.0 0.00 103 75-125
cis-1,2-Dichloroethene 50.4 ug/kg 50.0 0.00 101 75-125
Ethylbenzene 49.6 ug/kg 50.0 0.00 99.3 75-125
Isopropylbenzene 46.9 ug/kg 50.0 0.00 93.9 75-125
n-Propylbenzene 46.7 ug/kg 50.0 0.00 93.4 75-125
Toluene (Methyl benzene) 48.5 ug/kg 50.0 0.581 95.9 75-125 1,1,1-Trichloroethane 53.3 ug/kg 50.0 0.00 107 75-125
1,1,2-Trichloroethane 45.4 ug/kg 50.0 0.00 90.8 75-125
Trichloroethene 50.4 ug/kg 50.0 0.00 101 75-125
1,2,4-Trimethylbenzene 46.3 ug/kg 50.0 0.00 92.6 75-125 1,3,5-Trimethylbenzene 46.8 ug/kg 50.0 0.00 93.6 75-125 o-Xylene 49.5 ug/kg 50.0 0.00 99.0 75-125
m,p-Xylenes 100 ug/kg 100 0.00 100 75-125
Methyl-tert-butyl ether (MTBE) 48.6 ug/kg 50.0 0.00 97.1 75-125 Surrogate: Bromofluorobenzene 49.8 ug/kg 50.0 99.6 75-125 Surrogate: Dibromofluoromethane 52.6 ug/kg 50.0 105 75-125 Surrogate: Toluene-d8 48.6 ug/kg 50.0 97.2 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 111 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0282 - 5030 (Continued) Prepared: 06/22/2023 10:00 Matrix Spike Dup (B3F0282-MSD1) Source: BEF0201-01 Analyzed: 06/22/2023 20:24 Benzene 52.9 ug/kg 50.0 0.680 104 75-125 7.21 20
Carbon tetrachloride 57.3 ug/kg 50.0 0.00 115 75-125 5.14 20 Chlorobenzene 51.5 ug/kg 50.0 0.00 103 75-125 7.29 20
Chloroform (Trichloromethane) 57.4 ug/kg 50.0 0.00 115 75-125 6.53 20 1,2-Dichlorobenzene 47.3 ug/kg 50.0 0.00 94.6 75-125 6.91 20 1,1-Dichloroethane 57.1 ug/kg 50.0 0.00 114 75-125 8.15 20 1,1-Dichloroethene 55.8 ug/kg 50.0 0.00 112 75-125 7.62 20 cis-1,2-Dichloroethene 54.6 ug/kg 50.0 0.00 109 75-125 7.98 20 Ethylbenzene 53.0 ug/kg 50.0 0.00 106 75-125 6.43 20
Isopropylbenzene 50.4 ug/kg 50.0 0.00 101 75-125 7.21 20 n-Propylbenzene 50.0 ug/kg 50.0 0.00 100 75-125 6.79 20 Toluene (Methyl benzene) 51.5 ug/kg 50.0 0.581 102 75-125 6.00 20 1,1,1-Trichloroethane 56.4 ug/kg 50.0 0.00 113 75-125 5.69 20 1,1,2-Trichloroethane 48.7 ug/kg 50.0 0.00 97.4 75-125 6.99 20 Trichloroethene 53.1 ug/kg 50.0 0.00 106 75-125 5.14 20 1,2,4-Trimethylbenzene 49.4 ug/kg 50.0 0.00 98.9 75-125 6.58 20 1,3,5-Trimethylbenzene 50.2 ug/kg 50.0 0.00 100 75-125 6.99 20 o-Xylene 53.1 ug/kg 50.0 0.00 106 75-125 7.00 20
m,p-Xylenes 107 ug/kg 100 0.00 107 75-125 6.00 20
Methyl-tert-butyl ether (MTBE) 51.3 ug/kg 50.0 0.00 103 75-125 5.57 20 Surrogate: Bromofluorobenzene 50.1 ug/kg 50.0 100 75-125 Surrogate: Dibromofluoromethane 52.6 ug/kg 50.0 105 75-125 Surrogate: Toluene-d8 48.6 ug/kg 50.0 97.1 75-125
Batch: B3F0291 - 5035A Prepared: 06/22/2023 11:00
Method Blank (B3F0291-BLK1) Analyzed: 06/23/2023 00:52
Acetone ND 25.0 50.0 ug/kg
Benzene ND 1.00 10.0 ug/kg
Bromobenzene (Phenyl bromide) ND 5.00 10.0 ug/kg
Bromochloromethane ND 5.00 10.0 ug/kg
Bromodichloromethane ND 5.00 10.0 ug/kg
Bromoform (Tribromomethane) ND 25.0 50.0 ug/kg
Bromomethane (Methyl bromide) ND 15.0 30.0 ug/kg
2-Butanone (MEK) ND 25.0 50.0 ug/kg
n-Butylbenzene ND 5.00 10.0 ug/kg
sec-Butylbenzene ND 5.00 10.0 ug/kg
tert-Butylbenzene ND 5.00 10.0 ug/kg
Carbon Disulfide ND 25.0 50.0 ug/kg
Carbon tetrachloride ND 5.00 10.0 ug/kg
Chlorobenzene ND 5.00 10.0 ug/kg
Chloroethane ND 15.0 30.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 112 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0291 - 5035A (Continued) Prepared: 06/22/2023 11:00 Method Blank (B3F0291-BLK1) Analyzed: 06/23/2023 00:52
2-Chloroethyl vinyl ether ND 50.0 50.0 ug/kg
Chloroform (Trichloromethane) ND 5.00 10.0 ug/kg
Chloromethane (Methyl chloride) ND 15.0 30.0 ug/kg
2-Chlorotoluene ND 5.00 10.0 ug/kg
4-Chlorotoluene ND 5.00 10.0 ug/kg
1,2-Dibromo-3-chloropropane
(DBCP)
ND 5.00 10.0 ug/kg
Dibromochloromethane ND 5.00 10.0 ug/kg
1,2-Dibromoethane (EDB) ND 5.00 10.0 ug/kg
Dibromomethane ND 5.00 10.0 ug/kg
1,2-Dichlorobenzene ND 5.00 10.0 ug/kg
1,3-Dichlorobenzene ND 5.00 10.0 ug/kg
1,4-Dichlorobenzene ND 5.00 10.0 ug/kg
Dichlorodifluoromethane ND 15.0 30.0 ug/kg
1,1-Dichloroethane ND 5.00 10.0 ug/kg
1,2-Dichloroethane (EDC) ND 5.00 10.0 ug/kg
1,1-Dichloroethene ND 5.00 10.0 ug/kg
cis-1,2-Dichloroethene ND 5.00 10.0 ug/kg
trans-1,2-Dichloroethene ND 5.00 10.0 ug/kg
1,2-Dichloropropane ND 5.00 10.0 ug/kg
1,3-Dichloropropane ND 5.00 10.0 ug/kg
2,2-Dichloropropane ND 5.00 10.0 ug/kg
1,1-Dichloropropene ND 5.00 10.0 ug/kg
cis-1,3-Dichloropropene ND 5.00 10.0 ug/kg
trans-1,3-Dichloropropene ND 5.00 10.0 ug/kg
Ethylbenzene ND 1.00 10.0 ug/kg
Hexachlorobutadiene ND 15.0 30.0 ug/kg
2-Hexanone ND 25.0 50.0 ug/kg
Iodomethane ND 5.00 10.0 ug/kg
Isopropylbenzene ND 5.00 10.0 ug/kg
p-Isopropyltoluene ND 5.00 10.0 ug/kg
4-Methyl-2-pentanone (MIBK) ND 25.0 50.0 ug/kg
Methylene chloride (DCM) ND 25.0 50.0 ug/kg
Naphthalene ND 5.00 10.0 ug/kg
n-Propylbenzene ND 5.00 10.0 ug/kg
Styrene ND 5.00 10.0 ug/kg
1,1,1,2-Tetrachloroethane ND 5.00 10.0 ug/kg
1,1,2,2-Tetrachloroethane ND 5.00 10.0 ug/kg
Tetrachloroethene ND 2.00 10.0 ug/kg
Toluene (Methyl benzene) ND 1.00 10.0 ug/kg
1,2,3-Trichlorobenzene ND 5.00 10.0 ug/kg
1,2,4-Trichlorobenzene ND 5.00 10.0 ug/kg
1,1,1-Trichloroethane ND 5.00 10.0 ug/kg

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 113 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0291 - 5035A (Continued) Prepared: 06/22/2023 11:00 Method Blank (B3F0291-BLK1) Analyzed: 06/23/2023 00:52
1,1,2-Trichloroethane ND 5.00 10.0 ug/kg
Trichloroethene ND 1.50 10.0 ug/kg
Trichlorofluoromethane ND 5.00 10.0 ug/kg
Trichlorotrifluoroethane
(Freon-113)
ND 5.00 10.0 ug/kg
1,2,3-Trichloropropane ND 1.00 5.00 ug/kg
1,2,4-Trimethylbenzene ND 5.00 10.0 ug/kg
1,3,5-Trimethylbenzene ND 5.00 10.0 ug/kg
Vinyl Acetate ND 25.0 50.0 ug/kg
Vinyl chloride (Chloroethene) ND 5.00 10.0 ug/kg
o-Xylene ND 1.00 10.0 ug/kg
m,p-Xylenes ND 1.00 20.0 ug/kg
tert-Butyl alcohol (TBA) ND 10.0 50.0 ug/kg
Diisopropyl ether (DIPE) ND 2.00 10.0 ug/kg
Ethyl alcohol (Ethanol) ND 100 250 ug/kg
Ethyl-tert-butyl ether (ETBE) ND 2.00 10.0 ug/kg
Methyl-tert-butyl ether (MTBE) ND 2.00 10.0 ug/kg
tert-Amyl methyl ether (TAME) ND 2.00 10.0 ug/kg
Surrogate: Bromofluorobenzene 50.0 ug/kg 50.0 99.9 75-125 Surrogate: Dibromofluoromethane 55.0 ug/kg 50.0 110 75-125 Surrogate: Toluene-d8 49.8 ug/kg 50.0 99.6 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 114 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0291 - 5035A (Continued) Prepared: 06/22/2023 11:00 LCS (B3F0291-BS1) Analyzed: 06/22/2023 22:42
Benzene 60.3 ug/kg 50.0 121 75-125
Carbon tetrachloride 57.8 ug/kg 50.0 116 75-125
Chlorobenzene 55.3 ug/kg 50.0 111 75-125
Chloroform (Trichloromethane) 59.2 ug/kg 50.0 118 75-125 1,2-Dichlorobenzene 44.9 ug/kg 50.0 89.9 75-125
1,1-Dichloroethane 58.9 ug/kg 50.0 118 75-125
1,1-Dichloroethene 55.8 ug/kg 50.0 112 75-125
cis-1,2-Dichloroethene 61.8 ug/kg 50.0 124 75-125
Ethylbenzene 59.1 ug/kg 50.0 118 75-125
Isopropylbenzene 52.8 ug/kg 50.0 106 75-125
n-Propylbenzene 50.5 ug/kg 50.0 101 75-125
Toluene (Methyl benzene) 54.8 ug/kg 50.0 110 75-125
1,1,1-Trichloroethane 57.0 ug/kg 50.0 114 75-125
1,1,2-Trichloroethane 53.5 ug/kg 50.0 107 75-125
Trichloroethene 51.9 ug/kg 50.0 104 75-125
1,2,4-Trimethylbenzene 51.3 ug/kg 50.0 103 75-125
1,3,5-Trimethylbenzene 51.6 ug/kg 50.0 103 75-125
o-Xylene 52.8 ug/kg 50.0 106 75-125
m,p-Xylenes 108 ug/kg 100 108 75-125
Methyl-tert-butyl ether (MTBE) 55.5 ug/kg 50.0 111 75-125 Surrogate: Bromofluorobenzene 52.3 ug/kg 50.0 105 75-125 Surrogate: Dibromofluoromethane 54.3 ug/kg 50.0 109 75-125 Surrogate: Toluene-d8 52.0 ug/kg 50.0 104 75-125
LCSD (B3F0291-BSD1) Analyzed: 06/22/2023 23:47
Benzene 59.2 ug/kg 50.0 118 75-125 1.84 20
Carbon tetrachloride 56.0 ug/kg 50.0 112 75-125 3.11 20 Chlorobenzene 54.2 ug/kg 50.0 108 75-125 2.10 20
Chloroform (Trichloromethane) 57.9 ug/kg 50.0 116 75-125 2.15 20 1,2-Dichlorobenzene 38.5 ug/kg 50.0 77.0 75-125 15.4 20 1,1-Dichloroethane 57.3 ug/kg 50.0 115 75-125 2.70 20
1,1-Dichloroethene 53.9 ug/kg 50.0 108 75-125 3.35 20
cis-1,2-Dichloroethene 60.4 ug/kg 50.0 121 75-125 2.29 20 Ethylbenzene 58.6 ug/kg 50.0 117 75-125 0.934 20
Isopropylbenzene 52.8 ug/kg 50.0 106 75-125 0.00 20
n-Propylbenzene 50.1 ug/kg 50.0 100 75-125 0.795 20
Toluene (Methyl benzene) 54.6 ug/kg 50.0 109 75-125 0.512 20 1,1,1-Trichloroethane 55.5 ug/kg 50.0 111 75-125 2.74 20 1,1,2-Trichloroethane 53.2 ug/kg 50.0 106 75-125 0.544 20 Trichloroethene 52.2 ug/kg 50.0 104 75-125 0.614 20
1,2,4-Trimethylbenzene 51.1 ug/kg 50.0 102 75-125 0.313 20 1,3,5-Trimethylbenzene 52.0 ug/kg 50.0 104 75-125 0.810 20

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 115 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
Batch: B3F0291 - 5035A (Continued) Prepared: 06/22/2023 11:00 LCSD (B3F0291-BSD1) Analyzed: 06/22/2023 23:47
o-Xylene 51.8 ug/kg 50.0 104 75-125 1.76 20
m,p-Xylenes 94.3 ug/kg 100 94.3 75-125 13.1 20
Methyl-tert-butyl ether (MTBE) 55.3 ug/kg 50.0 111 75-125 0.343 20 Surrogate: Bromofluorobenzene 51.2 ug/kg 50.0 102 75-125 Surrogate: Dibromofluoromethane 53.0 ug/kg 50.0 106 75-125 Surrogate: Toluene-d8 51.8 ug/kg 50.0 104 75-125
Matrix Spike (B3F0291-MS1) Source: BEF0195-02 Analyzed: 06/23/2023 08:59 Benzene 60.5 ug/kg 50.0 0.473 120 75-125
Carbon tetrachloride 57.0 ug/kg 50.0 0.00 114 75-125
Chlorobenzene 54.4 ug/kg 50.0 0.00 109 75-125
Chloroform (Trichloromethane) 59.8 ug/kg 50.0 0.00 120 75-125 1,2-Dichlorobenzene 40.8 ug/kg 50.0 0.00 81.6 75-125
1,1-Dichloroethane 59.1 ug/kg 50.0 0.00 118 75-125
1,1-Dichloroethene 54.1 ug/kg 50.0 0.00 108 75-125
cis-1,2-Dichloroethene 60.9 ug/kg 50.0 0.00 122 75-125
Ethylbenzene 58.4 ug/kg 50.0 0.00 117 75-125
Isopropylbenzene 51.5 ug/kg 50.0 0.00 103 75-125
n-Propylbenzene 47.8 ug/kg 50.0 0.00 95.7 75-125
Toluene (Methyl benzene) 55.6 ug/kg 50.0 0.223 111 75-125 1,1,1-Trichloroethane 57.1 ug/kg 50.0 0.00 114 75-125
1,1,2-Trichloroethane 48.7 ug/kg 50.0 0.00 97.3 75-125
Trichloroethene 57.6 ug/kg 50.0 0.00 115 75-125
1,2,4-Trimethylbenzene 48.4 ug/kg 50.0 0.00 96.8 75-125 1,3,5-Trimethylbenzene 49.6 ug/kg 50.0 0.00 99.3 75-125 o-Xylene 51.7 ug/kg 50.0 0.00 103 75-125
m,p-Xylenes 106 ug/kg 100 0.00 106 75-125
Methyl-tert-butyl ether (MTBE) 50.3 ug/kg 50.0 0.00 101 75-125 Surrogate: Bromofluorobenzene 50.2 ug/kg 50.0 100 75-125 Surrogate: Dibromofluoromethane 52.0 ug/kg 50.0 104 75-125 Surrogate: Toluene-d8 51.0 ug/kg 50.0 102 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 116 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
Volatile Organic Compounds (EPA 8260B)
MDL
Batch: B3F0291 - 5035A (Continued) Prepared: 06/22/2023 11:00 Matrix Spike Dup (B3F0291-MSD1) Source: BEF0195-02 Analyzed: 06/23/2023 09:32 Benzene 60.3 ug/kg 50.0 0.473 120 75-125 0.381 20
Carbon tetrachloride 55.8 ug/kg 50.0 0.00 112 75-125 2.06 20 Chlorobenzene 52.4 ug/kg 50.0 0.00 105 75-125 3.79 20
Chloroform (Trichloromethane) 59.0 ug/kg 50.0 0.00 118 75-125 1.38 20 1,2-Dichlorobenzene 41.2 ug/kg 50.0 0.00 82.5 75-125 1.12 20 1,1-Dichloroethane 59.8 ug/kg 50.0 0.00 120 75-125 1.16 20 1,1-Dichloroethene 54.5 ug/kg 50.0 0.00 109 75-125 0.810 20 cis-1,2-Dichloroethene 60.5 ug/kg 50.0 0.00 121 75-125 0.626 20 Ethylbenzene 56.4 ug/kg 50.0 0.00 113 75-125 3.47 20
Isopropylbenzene 50.1 ug/kg 50.0 0.00 100 75-125 2.64 20 n-Propylbenzene 46.6 ug/kg 50.0 0.00 93.2 75-125 2.65 20 Toluene (Methyl benzene) 54.2 ug/kg 50.0 0.223 108 75-125 2.62 20 1,1,1-Trichloroethane 55.9 ug/kg 50.0 0.00 112 75-125 2.18 20 1,1,2-Trichloroethane 47.2 ug/kg 50.0 0.00 94.4 75-125 3.09 20 Trichloroethene 56.0 ug/kg 50.0 0.00 112 75-125 2.84 20 1,2,4-Trimethylbenzene 46.1 ug/kg 50.0 0.00 92.2 75-125 4.87 20 1,3,5-Trimethylbenzene 47.9 ug/kg 50.0 0.00 95.9 75-125 3.51 20 o-Xylene 50.5 ug/kg 50.0 0.00 101 75-125 2.35 20
m,p-Xylenes 103 ug/kg 100 0.00 103 75-125 3.35 20
Methyl-tert-butyl ether (MTBE) 49.7 ug/kg 50.0 0.00 99.5 75-125 1.16 20 Surrogate: Bromofluorobenzene 50.4 ug/kg 50.0 101 75-125 Surrogate: Dibromofluoromethane 52.6 ug/kg 50.0 105 75-125 Surrogate: Toluene-d8 51.7 ug/kg 50.0 103 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 117 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Gasoline Range (EPA 8015B TPH GRO)
MDL
Batch: B3F0244 - 5030B Prepared: 06/20/2023 08:37
Method Blank (B3F0244-BLK1) Analyzed: 06/20/2023 10:04
TPH as Gasoline and Light HC.
(C4-C12)
ND 0.00500 0.0100 mg/L
Surrogate: Bromofluorobenzene 40.7 ug/L 50.0 81.5 75-120

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 118 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Gasoline Range (EPA 8015B TPH GRO)
Batch: B3F0244 - 5030B (Continued) Prepared: 06/20/2023 08:37 LCS (B3F0244-BS1) Analyzed: 06/20/2023 08:37
TPH as Gasoline and Light HC.
(C4-C12)

0.503 0.0100 mg/L 0.500 101 75-125
Surrogate: Bromofluorobenzene 51.6 ug/L 50.0 103 75-120 LCSD (B3F0244-BSD1) Analyzed: 06/20/2023 09:21
TPH as Gasoline and Light HC.
(C4-C12)

0.511 0.0100 mg/L 0.500 102 75-125 1.68 15
Surrogate: Bromofluorobenzene 50.5 ug/L 50.0 101 75-120 Duplicate (B3F0244-DUP1) Source: BEF0173-01 Analyzed: 06/20/2023 11:31 TPH as Gasoline and Light HC.
(C4-C12)
ND 0.00500 0.0100 mg/L ND NA 15
Surrogate: Bromofluorobenzene 47.9 ug/L 50.0 95.7 75-120

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 119 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Diesel Range (EPA 8015B TPH DRO/ORO)
MDL
Batch: B3F0263 - 3510C Prepared: 06/20/2023 16:46
Method Blank (B3F0263-BLK1) Analyzed: 06/21/2023 16:23
TPH as Diesel (C13-C22) ND 0.0123 0.100 mg/L
TPH as Heavy Hydrocarbons
(C23-40)
ND 0.0123 0.100 mg/L
TPH Total as Diesel and Heavy HC
(C13-C40)
ND 0.0123 0.100 mg/L
Surrogate: Chlorobenzene 182 mg/L 200 90.9 60-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 120 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Diesel Range (EPA 8015B TPH DRO/ORO)
Batch: B3F0263 - 3510C (Continued) Prepared: 06/20/2023 16:46 LCS (B3F0263-BS1) Analyzed: 06/21/2023 14:48
TPH as Diesel (C13-C22) 4.86 0.100 mg/L 5.00 97.2 75-125 Surrogate: Chlorobenzene 172 mg/L 200 85.8 60-125
LCSD (B3F0263-BSD1) Analyzed: 06/21/2023 15:37
TPH as Diesel (C13-C22) 4.87 0.100 mg/L 5.00 97.4 75-125 0.198 20 Surrogate: Chlorobenzene 168 mg/L 200 83.9 60-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 121 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Qualifiers and Definitions
Item Qualifiers
Analyte was detected. However, the analyte concentration is an estimated value, which is between the Method Detection Limit (MDL) and the Reporting Limit (RL).

J
Item Definitions
% wt Percent Weight
%REC Percent Recovery
°F Degrees Fahrenheit
AETL American Environmental Testing Laboratory, LLC
C Carbon
CARB California Air Resources Board
COC Chain of Custody
3-methylphenol/4-methylphenol coelute and cannot be chromatographically separated. Due to this coeluting isomer pair phenomenon, the laboratory uses a single cresol (4-methylphenol) as calibration standard for 3-methylphenol/4-methylphenol.

Cresols
CRM Certified Reference Material
DI Deionized Water
DPD Department of Planning and Development
DRO Diesel Range Organics
Dup Duplicate
ELAP Environmental Laboratory Accreditation Program
EPA Environmental Protection Agency
GC/FID Gas Chromatography Flame Ionization Detection
GRO Gasoline Range Organics
HC Hydrocarbon
HEM Hexane Extractable Material
HMU Hazardous Material Unit
ICP/MS Inductively Coupled Plasma Mass Spectrometry
LACSD Los Angeles County Sanitation Districts
Laboratory Control Sample - A sample matrix, free from the analytes of interest, spiked with verified known amounts of analytes.

LCS
LCSD Laboratory Control Sample Duplicate - A replicate of Laboratory Control Sample.

LOQ Limit of Quantitation
Method Detection Limit - The minimum measured concentration of a substance that can be reported with 99% confidence.

MDL is statistically derived number which is specific for each instrument, each method and each compound.

MDL
mg/kg Miligrams per Kilogram
mg/L Miligrams per Liter
ml/L/hr Milliliter per Liter per Hour
MRO Motor oil Range Organics
[TOC_1]Qualifiers and
Definitions[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 122 of 123 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/27/2023 13:30
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Matrix Spike - A sample prepared, taken through all sample preparation and analytical steps of the procedure and analyzed as an independent test results.

MS
MSD Matrix Spike Duplicate - A replicate of Matrix Spike Sample.

N No
ND Analyte is not detected below Method Detection Limit. ng/m3 Nanograms per cubic meter
NIOSH National Institute for Occupational Safety and Health nL/L Nanoliters per Liter
NTU Nephelometric Turbidity Units
Ohm-cm Ohms per centimeter
ORO Oil Range Organics
OSHA Occupational Safety and Health Administration
PCB Polychlorinated Biphenyl
ppb v Parts per billion by volume
ppmC Parts per million Carbon
PSU Practical Salinity Unit
Reporting Limit - The lowest concentration at which an analyte can be detected in a sample and its concentration can be reported with a specified degree of confidence, accuracy and precision. For usage at AETL, RL is equivalant to LOQ.

RL
RPD Relative Percent Difference
SIM Selective Ion Monitoring
SM Standard Method
SPLP Synthetic Precipitation Leaching Procedure
STLC Soluble Threshold Limit Concentration
TCLP Toxicity Characteristic Leaching Procedure
TPH Total Petroleum Hydrocarbons
TTLC Total Threshold Limit Concentrations
ug/kg Micrograms per Kilogram
ug/L Micrograms per Liter
ug/m3 Micrograms per cubic meter
WET Waste Extraction Test
Y Yes
ZHE Zero Headspace Extraction

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 123 of 123 BEF0172
[none]
AETL Job No:

Project Number:

Received Date: 06/19/2023
August 10, 2023
Weis Environmental LLC
Carlsbad, CA 92008
1938 Kellogg Ave. Ste 116
Dan Weis
Enclosed please find the results of analyses for samples which were analyzed as specified on the attached chain of custody. If you have any questions concerning this report, please do not hesitate to call.

Project Name:

Site: 5261 Arlington Avenue
Riverside, California
5261 Arlington Avenue
Telephone: (760) 672-6338
Attention:
[TOC_1]Cover
Letter[TOC]
Checked By: Approved By:

Project Manager
Crystal Dalton
Project Manager
Hailley Coleman

Table of Contents
Client Project Name: 5261 Arlington Avenue Project Number: [none] Work Order Number: BEF0172
AETL, AETL, LLC. 2840 N. Naomi Street, Burbank , CA 91504 • TEL: 818-845-8200 1 Cover Letter 1
2 Sample Condition on Receipt 3
3 Chain of Custody 4
4 Cooler Receipt Form 7
5 Case Narrative 8
6 Samples Received 9
7 Positive Hits Summary 10
8 Analytical Results 11
9 Quality Control Results 12
10 Qualifiers and Definitions 16

Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Sample Condition on Receipt
Cooler ID: Default Cooler Temperature: 6.0 °C
Are the COCs Correct
Labels Legible
COC/Labels Agree
Sufficient Sample Volume
Sample Labels intact
Containers In Good Condition
Samples Preserved Properly
Sufficient Holding Time for all Tests
Received on Ice
Y
Y
Y
Y
Y
Y
Y
Y
Y
[TOC_1]Sample Condition on
Receipt[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 3 of 17

Cooler Receipt Form
20220906 Rev. 2.0

COOLER RECEIPT FORM
Client Name:

Project Name: Project No.:

AETL Job Number:

Date Received: Received by:

Carrier: Ö AETL Courier Ö ClientÖ GSLÖ FedEx Ö UPS ÖOthers:

Samples were received in: Ö Cooler (__________) Ö Other (Specify):

Sample Container Temperature: _______ °C IR Gun S/N: __________________ Type of sample containers: VOA, *ODVVERWWOHV:LGH PRXWKMDUV+'3(ERWWOHV Metal sleeves, Acetate sleeves, 5035 Kit: AETL or Client, Tedlar Bags, Summa Canister: 6L, 3L, 1L, Others (Specify): ____________________________________ How are samples preserved: Ö None, Ö Ice, Ö Blue Ice, Ö Dry Ice @ None, @ HNO3, @ NaOH, @ ZnOAc, @ HCl, @ Na2S2O3, @ MeOH, @ NaHSO4
 @ Other (Specify):

Yes No N/A Note or Comment

1. Are the COCs Correct?

2. Are Sample labels legible & indelible ink?

3. Do samples match the COC?

4. Are the required analyses clear?

5. Is there enough samples for required analysis?

6. Does cooler or samples have custody seal(s)?

7. Are sample containers in good condition?

8. Are samples preserved?

9. Are samples preserved properly for the
intended analysis?

10. Are the VOAs free of headspace? See footnote.

11. Are the jars free of headspace?
* = see note below. N/A = Not Applicable
PLEASE NOTE ALL SAMPLES WILL BE DISPOSED OF 30 DAYS AFTER RECEIVING DATE. IF

AETL IS INFORMED OTHERWISE, THERE WILL BE A STORAGE CHARGE PER SAMPLE PER MONTH FOR ANY SAMPLE HELD BEYOND 30 DAYS.

Example maximum headspace bubble size; acceptance criteria not to exceed 5-6 mm in diameter.

For headspace bubbles exceeding 6 mm in diameter, sample receiving will tag the VOA and notify the Project Manager.

The Project Manager will contact client for Analyze or Resample instructions.

Weis Environmental
5261 Arlington Ave
BEF0172
06/19/2023 Jessica A
✔
✔

6.0 51941911MV
✔ ✔
✔ ✔
✔
✔
✔
✔
✔
1 Sodiumbisulfate
✔
✔
✔
✔
✔

Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Case Narrative
The following "Sample Received" Section summarizes the samples received and associated analyses requested as specified on the enclosed chain of custody.

Results as reported by the laboratory apply only to 1) the items tested, 2) as the samples are received, and 3) the accuracy of information provided. Information supplied by the customer that may affect validity of results and may be contained in this report include Project Name/Number, Site Location, Sample Locations, Sampling Dates/Times, Sample ID, Sample Preservation, Sample Matrix, Sample Properties, Field Blanks, Field Duplicates, Field Spikes, and Site Historical Data.

Accreditation applies only to the test methods listed on each scope of accreditation held by the laboratory; certifications held by the laboratory may not apply to results supplied in this report.

Unless otherwise noted, all results of soil and solid samples are based on wet weight.

No analytical non-conformances were encountered.

Qualifiers are noted in the report.
[TOC_1]Case Narrative[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 8 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
AETL received the following samples on 06/19/2023 with the following specifications BEF0172-15
Lab ID
Client ID
B32-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 9:34
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 Total Number of Samples received: 1
[TOC_1]Samples
Received[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 9 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Positive Hits Summary
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
Sampled
No positive results reported
[TOC_1]Positive Hits
Summary[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 10 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0172-15 (Soil)
B32-1
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 9:34
TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 07/19/23 13:01 07/19/23 15:03 B3G0244 BK 5030 Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 111% 75-120 07/19/23 13:01 07/19/23 15:03 B3G0244 BK 5030 TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 07/19/23 13:14 07/20/23 10:13 B3G0250 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 07/19/23 13:14 07/20/23 10:13 B3G0250 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 07/19/23 13:14 07/20/23 10:13 B3G0250 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 92.6% 75-125 07/19/23 13:14 07/20/23 10:13 B3G0250 TTN 3550B [TOC_1]Analytical
Results[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 11 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Gasoline Range (EPA 8015B TPH GRO)
MDL
Batch: B3G0244 - 5030 Prepared: 07/19/2023 08:57
Method Blank (B3G0244-BLK1) Analyzed: 07/19/2023 12:20
TPH as Gasoline and Light HC.
(C4-C12)
ND 0.116 0.200 mg/kg
Surrogate: Bromofluorobenzene 51.6 ug/kg 50.0 103 75-120 [TOC_1]Quality Control
Results[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 12 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Gasoline Range (EPA 8015B TPH GRO)
Batch: B3G0244 - 5030 (Continued) Prepared: 07/19/2023 08:57 LCS (B3G0244-BS1) Analyzed: 07/19/2023 09:38
TPH as Gasoline and Light HC.
(C4-C12)

1.00 0.200 mg/kg 1.00 100 75-125
Surrogate: Bromofluorobenzene 51.5 ug/kg 50.0 103 75-120 LCSD (B3G0244-BSD1) Analyzed: 07/19/2023 10:18
TPH as Gasoline and Light HC.
(C4-C12)

1.00 0.200 mg/kg 1.00 100 75-125 0.215 15
Surrogate: Bromofluorobenzene 48.0 ug/kg 50.0 95.9 75-120 Matrix Spike (B3G0244-MS1) Source: BEG0143-16 Analyzed: 07/19/2023 23:10 TPH as Gasoline and Light HC.
(C4-C12)

1.00 0.116 0.200 mg/kg 1.00 ND 100 75-125
Surrogate: Bromofluorobenzene 45.9 ug/kg 50.0 91.8 75-120 Matrix Spike Dup (B3G0244-MSD1) Source: BEG0143-16 Analyzed: 07/19/2023 23:50 TPH as Gasoline and Light HC.
(C4-C12)

1.00 0.116 0.200 mg/kg 1.00 ND 100 75-125 NA 15
Surrogate: Bromofluorobenzene 59.1 ug/kg 50.0 118 75-120

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 13 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Diesel Range (EPA 8015B TPH DRO/ORO)
MDL
Batch: B3G0250 - 3550B Prepared: 07/19/2023 09:30
Method Blank (B3G0250-BLK1) Analyzed: 07/19/2023 14:20
TPH as Diesel (C13-C22) ND 1.62 10.0 mg/kg
TPH as Heavy Hydrocarbons
(C23-40)
ND 1.62 10.0 mg/kg
TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1.62 10.0 mg/kg
Surrogate: Chlorobenzene 85.5 mg/kg 100 85.5 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 14 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Result RL Units
Spike
Level
Source
Result %REC
%REC
Limits RPD
RPD
Analyte Limit Qualifier
Quality Control Results
TPH Diesel Range (EPA 8015B TPH DRO/ORO)
Batch: B3G0250 - 3550B (Continued) Prepared: 07/19/2023 09:30 LCS (B3G0250-BS1) Analyzed: 07/19/2023 10:54
TPH as Diesel (C13-C22) 2560 10.0 mg/kg 2500 102 75-125 Surrogate: Chlorobenzene 93.1 mg/kg 100 93.1 75-125
LCSD (B3G0250-BSD1) Analyzed: 07/19/2023 11:41
TPH as Diesel (C13-C22) 2570 10.0 mg/kg 2500 103 75-125 0.668 20 Surrogate: Chlorobenzene 94.6 mg/kg 100 94.6 75-125
Matrix Spike (B3G0250-MS1) Source: BEG0141-01 Analyzed: 07/19/2023 12:28 TPH as Diesel (C13-C22) 2440 1.62 10.0 mg/kg 2390 ND 102 75-125 Surrogate: Chlorobenzene 81.6 mg/kg 100 81.6 75-125
Matrix Spike Dup (B3G0250-MSD1) Source: BEG0141-01 Analyzed: 07/19/2023 13:20 TPH as Diesel (C13-C22) 2380 1.62 10.0 mg/kg 2340 ND 102 75-125 NA 20 Surrogate: Chlorobenzene 81.3 mg/kg 100 81.3 75-125

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 15 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Qualifiers and Definitions
Item Definitions
% wt Percent Weight
%REC Percent Recovery
°F Degrees Fahrenheit
AETL American Environmental Testing Laboratory, LLC
C Carbon
CARB California Air Resources Board
COC Chain of Custody
3-methylphenol/4-methylphenol coelute and cannot be chromatographically separated. Due to this coeluting isomer pair phenomenon, the laboratory uses a single cresol (4-methylphenol) as calibration standard for 3-methylphenol/4-methylphenol.

Cresols
CRM Certified Reference Material
DI Deionized Water
DPD Department of Planning and Development
DRO Diesel Range Organics
Dup Duplicate
ELAP Environmental Laboratory Accreditation Program
EPA Environmental Protection Agency
GC/FID Gas Chromatography Flame Ionization Detection
GRO Gasoline Range Organics
HC Hydrocarbon
HEM Hexane Extractable Material
HMU Hazardous Material Unit
ICP/MS Inductively Coupled Plasma Mass Spectrometry
LACSD Los Angeles County Sanitation Districts
Laboratory Control Sample - A sample matrix, free from the analytes of interest, spiked with verified known amounts of analytes.

LCS
LCSD Laboratory Control Sample Duplicate - A replicate of Laboratory Control Sample.

LOQ Limit of Quantitation
Method Detection Limit - The minimum measured concentration of a substance that can be reported with 99% confidence.

MDL is statistically derived number which is specific for each instrument, each method and each compound.

MDL
mg/kg Miligrams per Kilogram
mg/L Miligrams per Liter
ml/L/hr Milliliter per Liter per Hour
MRO Motor oil Range Organics
Matrix Spike - A sample prepared, taken through all sample preparation and analytical steps of the procedure and analyzed as an independent test results.

MS
MSD Matrix Spike Duplicate - A replicate of Matrix Spike Sample.

N No
ND Analyte is not detected below Method Detection Limit. [TOC_1]Qualifiers and
Definitions[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 16 of 17 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
08/10/2023 12:00
Project Number: [none]
AETL Job Number: BEF0172 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
ng/m3 Nanograms per cubic meter
NIOSH National Institute for Occupational Safety and Health nL/L Nanoliters per Liter
NTU Nephelometric Turbidity Units
Ohm-cm Ohms per centimeter
ORO Oil Range Organics
OSHA Occupational Safety and Health Administration
PCB Polychlorinated Biphenyl
ppb v Parts per billion by volume
ppmC Parts per million Carbon
PSU Practical Salinity Unit
Reporting Limit - The lowest concentration at which an analyte can be detected in a sample and its concentration can be reported with a specified degree of confidence, accuracy and precision. For usage at AETL, RL is equivalant to LOQ.

RL
RPD Relative Percent Difference
SIM Selective Ion Monitoring
SM Standard Method
SPLP Synthetic Precipitation Leaching Procedure
STLC Soluble Threshold Limit Concentration
TCLP Toxicity Characteristic Leaching Procedure
TPH Total Petroleum Hydrocarbons
TTLC Total Threshold Limit Concentrations
ug/kg Micrograms per Kilogram
ug/L Micrograms per Liter
ug/m3 Micrograms per cubic meter
WET Waste Extraction Test
Y Yes
ZHE Zero Headspace Extraction

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 17 of 17 BEF0193
[none]
AETL Job No:

Project Number:

Received Date: 06/20/2023
June 30, 2023
Weis Environmental LLC
Carlsbad, CA 92008
1938 Kellogg Ave. Ste 116
Dan Weis
Enclosed please find the results of analyses for samples which were analyzed as specified on the attached chain of custody. If you have any questions concerning this report, please do not hesitate to call.

Project Name:

Site: 5261 Arlington Avenue
Riverside, California
5261 Arlington Avenue
Telephone: (760) 672-6338
Attention:
[TOC_1]Cover
Letter[TOC]
Checked By: Approved By:

Project Manager
Hailley Coleman
Project Manager
Corey Jones

Table of Contents
Client Project Name: 5261 Arlington Avenue Project Number: [none] Work Order Number: BEF0193
AETL, AETL, LLC. 2840 N. Naomi Street, Burbank , CA 91504 • TEL: 818-845-8200 1 Cover Letter 1
2 Sample Condition on Receipt 3
3 Chain of Custody 4
4 Cooler Receipt Form 6
5 Case Narrative 7
6 Samples Received 8
7 Positive Hits Summary 18
8 Analytical Results 22
9 Quality Control Results 100
10 Qualifiers and Definitions 124

Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Sample Condition on Receipt
Cooler ID: Default Cooler Temperature: 5.8 °C
Are the COCs Correct
Labels Legible
COC/Labels Agree
Sufficient Sample Volume
Sample Labels intact
Containers In Good Condition
Samples Preserved Properly
Sufficient Holding Time for all Tests
Received on Ice
Y
Y
Y
Y
Y
Y
Y
Y
Y
[TOC_1]Sample Condition on
Receipt[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 3 of 125

Cooler Receipt Form
20220906 Rev. 2.0

COOLER RECEIPT FORM
Client Name:

Project Name: Project No.:

AETL Job Number:

Date Received: Received by:

Carrier: Ö AETL Courier Ö ClientÖ GSLÖ FedEx Ö UPS ÖOthers:

Samples were received in: Ö Cooler (__________) Ö Other (Specify):

Sample Container Temperature: _______ °C IR Gun S/N: __________________ Type of sample containers: VOA, *ODVVERWWOHV:LGH PRXWKMDUV+'3(ERWWOHV Metal sleeves, Acetate sleeves, 5035 Kit: AETL or Client, Tedlar Bags, Summa Canister: 6L, 3L, 1L, Others (Specify): ____________________________________ How are samples preserved: Ö None, Ö Ice, Ö Blue Ice, Ö Dry Ice @ None, @ HNO3, @ NaOH, @ ZnOAc, @ HCl, @ Na2S2O3, @ MeOH, @ NaHSO4
 @ Other (Specify):

Yes No N/A Note or Comment

1. Are the COCs Correct?

2. Are Sample labels legible & indelible ink?

3. Do samples match the COC?

4. Are the required analyses clear?

5. Is there enough samples for required analysis?

6. Does cooler or samples have custody seal(s)?

7. Are sample containers in good condition?

8. Are samples preserved?

9. Are samples preserved properly for the
intended analysis?

10. Are the VOAs free of headspace? See footnote.

11. Are the jars free of headspace?
* = see note below. N/A = Not Applicable
PLEASE NOTE ALL SAMPLES WILL BE DISPOSED OF 30 DAYS AFTER RECEIVING DATE. IF

AETL IS INFORMED OTHERWISE, THERE WILL BE A STORAGE CHARGE PER SAMPLE PER MONTH FOR ANY SAMPLE HELD BEYOND 30 DAYS.

Example maximum headspace bubble size; acceptance criteria not to exceed 5-6 mm in diameter.

For headspace bubbles exceeding 6 mm in diameter, sample receiving will tag the VOA and notify the Project Manager.

The Project Manager will contact client for Analyze or Resample instructions.

Weis Environmental
5261 Arlington Ave
BEF0193
06/20/2023 Jessica A
✔
✔

5.8 51941911MV
✔ ✔
✔ ✔
✔
✔
✔
✔
✔
1 Sodiumbisulfate
✔
✔
✔
✔
✔

Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Case Narrative
The following "Sample Received" Section summarizes the samples received and associated analyses requested as specified on the enclosed chain of custody.

Results as reported by the laboratory apply only to 1) the items tested, 2) as the samples are received, and 3) the accuracy of information provided. Information supplied by the customer that may affect validity of results and may be contained in this report include Project Name/Number, Site Location, Sample Locations, Sampling Dates/Times, Sample ID, Sample Preservation, Sample Matrix, Sample Properties, Field Blanks, Field Duplicates, Field Spikes, and Site Historical Data.

Accreditation applies only to the test methods listed on each scope of accreditation held by the laboratory; certifications held by the laboratory may not apply to results supplied in this report.

Unless otherwise noted, all results of soil and solid samples are based on wet weight.

No analytical non-conformances were encountered.

Qualifiers are noted in the report.
[TOC_1]Case Narrative[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 7 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-01
Lab ID
Client ID
B36-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 14:01
Archive Sample On Hold N/A 0
BEF0193-02
Lab ID
Client ID
B36-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 14:05
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-03
Lab ID
Client ID
B36-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 14:11
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-04
Lab ID
Client ID
B46-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/19/2023 14:36
Archive Sample On Hold N/A 0
[TOC_1]Samples
Received[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 8 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-05
Lab ID
Client ID
B46-5
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 14:40
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-06
Lab ID
Client ID
B46-15
Sample Date
Matrix Quantity of Containers
Soil 4
Method Analyte Units TAT
06/19/2023 14:44
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-07
Lab ID
Client ID
T-Blank-06
Sample Date
Matrix Quantity of Containers
Aqueous 2
Method Analyte Units TAT
06/20/2023 0:00
EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/L 5
BEF0193-08
Lab ID
Client ID
EB-5
Sample Date
Matrix Quantity of Containers
Aqueous 5
Method Analyte Units TAT
06/20/2023 7:45
TPH as Diesel and Heavy Hydrocarbons Using mg/L 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/L 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 9 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/L 5
BEF0193-09
Lab ID
Client ID
B26-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/20/2023 8:38
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 BEF0193-10
Lab ID
Client ID
B26-5
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 8:40
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-11
Lab ID
Client ID
B26-10
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 8:45
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 10 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-12
Lab ID
Client ID
B26-15
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 8:48
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-13
Lab ID
Client ID
B26-20
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 8:50
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-14
Lab ID
Client ID
GW26
Sample Date
Matrix Quantity of Containers
Aqueous 4
Method Analyte Units TAT
06/20/2023 9:34
TPH as Diesel and Heavy Hydrocarbons Using mg/L 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/L 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/L 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 11 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-15
Lab ID
Client ID
B24-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/20/2023 10:54
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 BEF0193-16
Lab ID
Client ID
B24-5
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 10:56
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-17
Lab ID
Client ID
B24-10
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 11:01
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 12 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-18
Lab ID
Client ID
B24-15
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 11:03
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-19
Lab ID
Client ID
B24-20
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 11:05
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-20
Lab ID
Client ID
B97-10
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/20/2023 12:00
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 13 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-21
Lab ID
Client ID
GW24
Sample Date
Matrix Quantity of Containers
Aqueous 4
Method Analyte Units TAT
06/20/2023 12:48
TPH as Diesel and Heavy Hydrocarbons Using mg/L 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/L 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/L 5
BEF0193-22
Lab ID
Client ID
B20-1
Sample Date
Matrix Quantity of Containers
Soil 1
Method Analyte Units TAT
06/20/2023 14:21
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 BEF0193-23
Lab ID
Client ID
B20-5
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 14:24
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 14 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-24
Lab ID
Client ID
B20-10
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 14:27
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-25
Lab ID
Client ID
B20-15
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 14:29
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-26
Lab ID
Client ID
B20-20
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 14:42
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 15 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-27
Lab ID
Client ID
B20-25
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 14:49
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-28
Lab ID
Client ID
B20-30
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 15:05
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
BEF0193-29
Lab ID
Client ID
B20-35
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 15:12
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 16 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Samples Received
(Continued)
AETL received the following samples on 06/20/2023 with the following specifications BEF0193-30
Lab ID
Client ID
B20-40
Sample Date
Matrix Quantity of Containers
Soil 5
Method Analyte Units TAT
06/20/2023 15:22
TPH as Diesel and Heavy Hydrocarbons Using mg/kg 5
GC/FID
EPA 8015B TPH

DRO/ORO
EPA 8015B TPH GRO TPH as Gasoline and Light Hydrocarbons mg/kg 5 EPA 8260B VOC plus Oxygenates by GC/MS (SW846) ug/kg 5
Total Number of Samples received: 30

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 17 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Positive Hits Summary
BEF0193-06 B46-15
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/19/2023 14:44
Sampled
EPA 8260B Benzene 1.95 J ug/kg 06/23/2023 03:35
BEF0193-08 EB-5
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 07:45
Sampled
EPA 8015B TPH GRO TPH as Gasoline and Light HC. (C4-C12) 0.00528 mg/L 06/26/2023 22:21 BEF0193-10 B26-5
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 08:40
Sampled
EPA 8260B Benzene 1.25 J ug/kg 06/23/2023 04:15
BEF0193-13 B26-20
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 08:50
Sampled
EPA 8260B Benzene 1.50 J ug/kg 06/23/2023 06:12
EPA 8260B Toluene (Methyl benzene) 1.07 J ug/kg 06/23/2023 06:12 EPA 8260B Trichloroethene 1.51 J ug/kg 06/23/2023 06:12 BEF0193-14 GW26
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 09:34
Sampled
EPA 8260B Trichloroethene 2.67 ug/L 06/23/2023 18:25
BEF0193-18 B24-15
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 11:03
Sampled
EPA 8260B Benzene 1.37 J ug/kg 06/23/2023 08:10
[TOC_1]Positive Hits
Summary[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 18 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Positive Hits Summary
(Continued)
BEF0193-21 GW24
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 12:48
Sampled
EPA 8015B TPH GRO TPH as Gasoline and Light HC. (C4-C12) 0.00904 mg/L 06/26/2023 23:48 BEF0193-23 B20-5
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 14:24
Sampled
EPA 8260B Benzene 1.70 J ug/kg 06/23/2023 15:53
BEF0193-24 B20-10
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 14:27
Sampled
EPA 8260B Benzene 1.61 J ug/kg 06/23/2023 17:35
BEF0193-25 B20-15
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 14:29
Sampled
EPA 8260B Ethylbenzene 5210 D, J ug/kg 06/23/2023 21:53 EPA 8260B Naphthalene 26200 DIL ug/kg 06/23/2023 21:53
EPA 8260B n-Propylbenzene 7060 DIL, J ug/kg 06/23/2023 21:53 EPA 8260B 1,2,4-Trimethylbenzene 73700 DIL ug/kg 06/23/2023 21:53 EPA 8260B 1,3,5-Trimethylbenzene 14300 DIL ug/kg 06/23/2023 21:53 EPA 8260B o-Xylene 5100 DIL, J ug/kg 06/23/2023 21:53
EPA 8260B m,p-Xylenes 19600 DIL, J ug/kg 06/23/2023 21:53 EPA 8015B TPH GRO TPH as Gasoline and Light HC. (C4-C12) 1830 DIL mg/kg 06/23/2023 14:57 EPA 8015B TPH DRO/ORO TPH as Diesel (C13-C22) 412 mg/kg 06/27/2023 21:18 EPA 8015B TPH DRO/ORO TPH Total as Diesel and Heavy HC (C13-C40) 412 mg/kg 06/27/2023 21:18 BEF0193-26 B20-20
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 14:42
Sampled
EPA 8260B Ethylbenzene 115000 DIL ug/kg 06/23/2023 22:25

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 19 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Positive Hits Summary
(Continued)
BEF0193-26 B20-20
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 14:42
Sampled
EPA 8260B Naphthalene 43400 DIL, J ug/kg 06/23/2023 22:25 EPA 8260B n-Propylbenzene 44200 DIL, J ug/kg 06/23/2023 22:25 EPA 8260B Toluene (Methyl benzene) 26200 DIL, J ug/kg 06/23/2023 22:25 EPA 8260B 1,2,4-Trimethylbenzene 342000 DIL ug/kg 06/23/2023 22:25 EPA 8260B 1,3,5-Trimethylbenzene 101000 DIL ug/kg 06/23/2023 22:25 EPA 8260B o-Xylene 221000 DIL ug/kg 06/23/2023 22:25
EPA 8260B m,p-Xylenes 536000 DIL ug/kg 06/23/2023 22:25 EPA 8015B TPH GRO TPH as Gasoline and Light HC. (C4-C12) 7280 DIL mg/kg 06/26/2023 13:54 EPA 8015B TPH DRO/ORO TPH as Diesel (C13-C22) 346 mg/kg 06/27/2023 22:01 EPA 8015B TPH DRO/ORO TPH Total as Diesel and Heavy HC (C13-C40) 346 mg/kg 06/27/2023 22:01 BEF0193-27 B20-25
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 14:49
Sampled
EPA 8260B Ethylbenzene 2450 DIL ug/kg 06/23/2023 20:48
EPA 8260B Naphthalene 1330 DIL, J ug/kg 06/23/2023 20:48 EPA 8260B n-Propylbenzene 2040 DIL ug/kg 06/23/2023 20:48 EPA 8260B 1,2,4-Trimethylbenzene 15300 DIL ug/kg 06/23/2023 20:48 EPA 8260B 1,3,5-Trimethylbenzene 5120 DIL ug/kg 06/23/2023 20:48 EPA 8260B o-Xylene 3640 DIL ug/kg 06/23/2023 20:48
EPA 8260B m,p-Xylenes 9810 DIL ug/kg 06/23/2023 20:48
EPA 8015B TPH GRO TPH as Gasoline and Light HC. (C4-C12) 275 DIL mg/kg 06/26/2023 14:35 EPA 8015B TPH DRO/ORO TPH as Diesel (C13-C22) 98.2 mg/kg 06/27/2023 22:42 EPA 8015B TPH DRO/ORO TPH Total as Diesel and Heavy HC (C13-C40) 98.2 mg/kg 06/27/2023 22:42 BEF0193-28 B20-30
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 15:05
Sampled
EPA 8260B Ethylbenzene 911 DIL ug/kg 06/23/2023 21:21
EPA 8260B Naphthalene 374 DIL ug/kg 06/23/2023 21:21
EPA 8260B n-Propylbenzene 174 DIL, J ug/kg 06/23/2023 21:21 EPA 8260B Toluene (Methyl benzene) 39.6 DIL, J ug/kg 06/23/2023 21:21 EPA 8260B 1,2,4-Trimethylbenzene 1530 DIL ug/kg 06/23/2023 21:21 EPA 8260B 1,3,5-Trimethylbenzene 448 DIL ug/kg 06/23/2023 21:21

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 20 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Positive Hits Summary
(Continued)
BEF0193-28 B20-30
Method Analyte Result Unit Analyzed
Lab ID Client ID
Qualifier
06/20/2023 15:05
Sampled
EPA 8260B o-Xylene 1310 DIL ug/kg 06/23/2023 21:21
EPA 8260B m,p-Xylenes 3200 DIL ug/kg 06/23/2023 21:21
EPA 8015B TPH GRO TPH as Gasoline and Light HC. (C4-C12) 31.3 DIL mg/kg 06/26/2023 22:47

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 21 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-02 (Soil)
B36-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:05
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A [TOC_1]Analytical
Results[TOC]

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 22 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-02 (Soil)
B36-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:05
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 23 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-02 (Soil)
B36-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:05
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A Surrogate: Toluene-d8 98.8% 75-125 06/22/23 10:00 06/23/23 01:38 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 24 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-03 (Soil)
B36-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:11
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 25 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-03 (Soil)
B36-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:11
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 26 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-03 (Soil)
B36-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:11
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A Surrogate: Toluene-d8 98.9% 75-125 06/22/23 10:00 06/23/23 02:17 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 27 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-05 (Soil)
B46-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:40
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Benzene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 28 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-05 (Soil)
B46-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:40
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 29 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-05 (Soil)
B46-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:40
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 98.9% 75-125 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Surrogate: Dibromofluoromethane 103% 75-125 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A Surrogate: Toluene-d8 98.3% 75-125 06/22/23 10:00 06/23/23 02:56 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 30 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-06 (Soil)
B46-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:44
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Benzene 1.95 J 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 31 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-06 (Soil)
B46-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:44
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 32 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-06 (Soil)
B46-15
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/19/23 14:44
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Surrogate: Dibromofluoromethane 101% 75-125 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A Surrogate: Toluene-d8 100% 75-125 06/22/23 10:00 06/23/23 03:35 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 33 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-07 (Aqueous)
T-Blank-06
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 0:00
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Benzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 34 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-07 (Aqueous)
T-Blank-06
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 0:00
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Styrene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Trichlorofluoromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Trichlorotrifluoroethane (Freon-113) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 35 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-07 (Aqueous)
T-Blank-06
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 0:00
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 101% 75-125 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Surrogate: Dibromofluoromethane 103% 75-125 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B Surrogate: Toluene-d8 97.7% 75-125 06/23/23 10:00 06/23/23 17:06 B3F0294 DA 5030B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 36 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-08 (Aqueous)
EB-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 7:45
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Benzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Bromobenzene (Phenyl bromide) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Bromochloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Bromodichloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Bromoform (Tribromomethane) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Bromomethane (Methyl bromide) ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 2-Butanone (MEK) ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B n-Butylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B sec-Butylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B tert-Butylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Carbon Disulfide ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Carbon tetrachloride ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Chlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Chloroethane ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 2-Chloroethyl vinyl ether ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Chloroform (Trichloromethane) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Chloromethane (Methyl chloride) ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 2-Chlorotoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 4-Chlorotoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2-Dibromo-3-chloropropane (DBCP) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Dibromochloromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2-Dibromoethane (EDB) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Dibromomethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,3-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,4-Dichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Dichlorodifluoromethane ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,1-Dichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2-Dichloroethane (EDC) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,1-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B cis-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B trans-1,2-Dichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 37 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-08 (Aqueous)
EB-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 7:45
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 2,2-Dichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,1-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B cis-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B trans-1,3-Dichloropropene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Ethylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Hexachlorobutadiene ND 1 1.50 3.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 2-Hexanone ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Iodomethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Isopropylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B p-Isopropyltoluene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 4-Methyl-2-pentanone (MIBK) ND 1 2.50 5.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Methylene chloride (DCM) ND 1 5.00 10.0 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Naphthalene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B n-Propylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Styrene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,1,1,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,1,2,2-Tetrachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Tetrachloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Toluene (Methyl benzene) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2,3-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2,4-Trichlorobenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,1,1-Trichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,1,2-Trichloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Trichloroethene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Trichlorofluoromethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Trichlorotrifluoroethane (Freon-113) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2,3-Trichloropropane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,2,4-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B 1,3,5-Trimethylbenzene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Vinyl Acetate ND 1 0.500 5.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Vinyl chloride (Chloroethene) ND 1 0.500 3.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B o-Xylene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B m,p-Xylenes ND 1 1.00 2.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Diisopropyl ether (DIPE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 38 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-08 (Aqueous)
EB-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 7:45
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 250 500 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Ethyl-tert-butyl ether (ETBE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Methyl-tert-butyl ether (MTBE) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B tert-Amyl methyl ether (TAME) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Acrylonitrile (2-Propenenitrile) ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Hexachloroethane ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B trans-1,4-Dichloro-2-butene ND 1 0.500 1.00 ug/L 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Surrogate: Dibromofluoromethane 104% 75-125 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B Surrogate: Toluene-d8 98.1% 75-125 06/23/23 10:00 06/23/23 17:46 B3F0294 DA 5030B TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light
HC. (C4-C12)

0.00528 1 0.00500 0.0100 mg/L 06/26/23 14:25 06/26/23 22:21 B3F0348 BK 5030B Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 86.1% 75-120 06/26/23 14:25 06/26/23 22:21 B3F0348 BK 5030B TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 0.0123 0.100 mg/L 06/23/23 17:59 06/26/23 16:36 B3F0337 TTN 3510C TPH as Heavy Hydrocarbons (C23-40) ND 1 0.0123 0.100 mg/L 06/23/23 17:59 06/26/23 16:36 B3F0337 TTN 3510C TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 0.0123 0.100 mg/L 06/23/23 17:59 06/26/23 16:36 B3F0337 TTN 3510C Recovery Acceptance Criteria
Surrogate: Chlorobenzene 84.1% 60-125 06/23/23 17:59 06/26/23 16:36 B3F0337 TTN 3510C

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 39 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-09 (Soil)
B26-1
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 8:38
TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 06/26/23 13:13 06/26/23 18:42 B3F0339 BK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 110% 75-120 06/26/23 13:13 06/26/23 18:42 B3F0339 BK 5035A TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 06/26/23 13:34 06/27/23 09:27 B3F0353 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 06/26/23 13:34 06/27/23 09:27 B3F0353 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 06/26/23 13:34 06/27/23 09:27 B3F0353 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 75.0% 75-125 06/26/23 13:34 06/27/23 09:27 B3F0353 TTN 3550B

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 40 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-10 (Soil)
B26-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 8:40
Volatile Organic Compounds
Method: EPA 8260B
Acetone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Benzene 1.25 J 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Bromobenzene (Phenyl bromide) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Bromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Bromodichloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Bromoform (Tribromomethane) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Bromomethane (Methyl bromide) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 2-Butanone (MEK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A n-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A sec-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A tert-Butylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Carbon Disulfide ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Carbon tetrachloride ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Chlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Chloroethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 2-Chloroethyl vinyl ether ND 1 50.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Chloroform (Trichloromethane) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Chloromethane (Methyl chloride) ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 2-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 4-Chlorotoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2-Dibromo-3-chloropropane (DBCP) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Dibromochloromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2-Dibromoethane (EDB) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Dibromomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,3-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,4-Dichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Dichlorodifluoromethane ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,1-Dichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2-Dichloroethane (EDC) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,1-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A cis-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A trans-1,2-Dichloroethene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 41 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-10 (Soil)
B26-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 8:40
Volatile Organic Compounds (Continued)
1,3-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 2,2-Dichloropropane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,1-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A cis-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A trans-1,3-Dichloropropene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Ethylbenzene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Hexachlorobutadiene ND 1 15.0 30.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 2-Hexanone ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Iodomethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Isopropylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A p-Isopropyltoluene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 4-Methyl-2-pentanone (MIBK) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Methylene chloride (DCM) ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Naphthalene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A n-Propylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Styrene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,1,1,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,1,2,2-Tetrachloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Tetrachloroethene ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Toluene (Methyl benzene) ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2,3-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2,4-Trichlorobenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,1,1-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,1,2-Trichloroethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Trichloroethene ND 1 1.50 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Trichlorofluoromethane ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Trichlorotrifluoroethane (Freon-113) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2,3-Trichloropropane ND 1 1.00 5.00 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,2,4-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A 1,3,5-Trimethylbenzene ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Vinyl Acetate ND 1 25.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Vinyl chloride (Chloroethene) ND 1 5.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A o-Xylene ND 1 1.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A m,p-Xylenes ND 1 1.00 20.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A tert-Butyl alcohol (TBA) ND 1 10.0 50.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Diisopropyl ether (DIPE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A

The contents of this report apply to the sample(s) analyzed in accordance with the chain of custody document.

No duplication of this report is allowed, except in its entirety without written approval of the laboratory. Page 42 of 125 Attention:

Reported:

Weis Environmental LLC
1938 Kellogg Ave. Ste 116
Carlsbad, CA 92008 Dan Weis
06/30/2023 11:23
Project Number: [none]
AETL Job Number: BEF0193 5261 Arlington Avenue
Riverside, California
Site:

Project Name: 5261 Arlington Avenue
Analytical Results
Client ID:

Analyte Result RL
Analyzed
Qualifier Units Date/Time
BEF0193-10 (Soil)
B26-5
Analyst
Dilution MDL Batch Initials
Lab ID:

Prep.

Method
Prepared
Date/Time
Sampled: 06/20/23 8:40
Volatile Organic Compounds (Continued)
Ethyl alcohol (Ethanol) ND 1 100 250 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Ethyl-tert-butyl ether (ETBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Methyl-tert-butyl ether (MTBE) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A tert-Amyl methyl ether (TAME) ND 1 2.00 10.0 ug/kg 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 100% 75-125 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Surrogate: Dibromofluoromethane 104% 75-125 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A Surrogate: Toluene-d8 98.5% 75-125 06/22/23 10:00 06/23/23 04:15 B3F0292 DA 5035A TPH Gasoline Range
Method: EPA 8015B TPH GRO
TPH as Gasoline and Light HC.
(C4-C12)
ND 1 0.116 0.200 mg/kg 06/22/23 11:14 06/22/23 18:04 B3F0280 BK 5035A Recovery Acceptance Criteria
Surrogate: Bromofluorobenzene 116% 75-120 06/22/23 11:14 06/22/23 18:04 B3F0280 BK 5035A TPH Diesel Range
Method: EPA 8015B TPH DRO/ORO
TPH as Diesel (C13-C22) ND 1 1.62 10.0 mg/kg 06/26/23 13:34 06/27/23 10:21 B3F0353 TTN 3550B TPH as Heavy Hydrocarbons (C23-40) ND 1 1.62 10.0 mg/kg 06/26/23 13:34 06/27/23 10:21 B3F0353 TTN 3550B TPH Total as Diesel and Heavy HC
(C13-C40)
ND 1 1.62 10.0 mg/kg 06/26/23 13:34 06/27/23 10:21 B3F0353 TTN 3550B Recovery Acceptance Criteria
Surrogate: Chlorobenzene 77.3% 75-125 06/26/23 13:34 06/27/23 10:21 B3F0353 TTN 3550B